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-rw-r--r--mesalib/src/mesa/drivers/common/meta.c15
-rw-r--r--mesalib/src/mesa/drivers/dri/common/xmlpool/t_options.h5
-rw-r--r--mesalib/src/mesa/main/compiler.h3
-rw-r--r--mesalib/src/mesa/main/dd.h4
-rw-r--r--mesalib/src/mesa/main/fbobject.c39
-rw-r--r--mesalib/src/mesa/main/fbobject.h3
-rw-r--r--mesalib/src/mesa/main/ff_fragment_shader.cpp16
-rw-r--r--mesalib/src/mesa/main/formatquery.c12
-rw-r--r--mesalib/src/mesa/main/framebuffer.c4
-rw-r--r--mesalib/src/mesa/main/framebuffer.h2
-rw-r--r--mesalib/src/mesa/main/mtypes.h2
-rw-r--r--mesalib/src/mesa/main/multisample.c77
-rw-r--r--mesalib/src/mesa/main/multisample.h5
-rw-r--r--mesalib/src/mesa/main/readpix.c284
-rw-r--r--mesalib/src/mesa/main/readpix.h4
-rw-r--r--mesalib/src/mesa/main/texgetimage.c1
-rw-r--r--mesalib/src/mesa/main/teximage.c34
-rw-r--r--mesalib/src/mesa/main/texparam.c12
-rw-r--r--mesalib/src/mesa/main/texstorage.c1
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_blit.c21
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_fbo.c24
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_fbo.h5
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_readpixels.c188
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_texture.c20
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_texture.h6
-rw-r--r--mesalib/src/mesa/state_tracker/st_context.c5
-rw-r--r--mesalib/src/mesa/state_tracker/st_context.h3
-rw-r--r--mesalib/src/mesa/state_tracker/st_format.c6
-rw-r--r--mesalib/src/mesa/state_tracker/st_format.h4
-rw-r--r--mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp142
-rw-r--r--mesalib/src/mesa/state_tracker/st_program.c45
31 files changed, 733 insertions, 259 deletions
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c
index 29a209ede..8114550ba 100644
--- a/mesalib/src/mesa/drivers/common/meta.c
+++ b/mesalib/src/mesa/drivers/common/meta.c
@@ -3118,6 +3118,7 @@ setup_texture_coords(GLenum faceTarget,
GLint slice,
GLint width,
GLint height,
+ GLint depth,
GLfloat coords0[3],
GLfloat coords1[3],
GLfloat coords2[3],
@@ -3134,8 +3135,11 @@ setup_texture_coords(GLenum faceTarget,
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
case GL_TEXTURE_2D_ARRAY:
- if (faceTarget == GL_TEXTURE_3D)
- r = 1.0F / slice;
+ if (faceTarget == GL_TEXTURE_3D) {
+ assert(slice < depth);
+ assert(depth >= 1);
+ r = (slice + 0.5f) / depth;
+ }
else if (faceTarget == GL_TEXTURE_2D_ARRAY)
r = slice;
else
@@ -3571,10 +3575,10 @@ _mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
else
assert(!genMipmapSave);
- /* Setup texture coordinates */
+ /* Setup texture coordinates */
setup_texture_coords(faceTarget,
slice,
- 0, 0, /* width, height never used here */
+ 0, 0, 1, /* width, height never used here */
verts[0].tex,
verts[1].tex,
verts[2].tex,
@@ -3840,6 +3844,7 @@ decompress_texture_image(struct gl_context *ctx,
struct gl_texture_object *texObj = texImage->TexObject;
const GLint width = texImage->Width;
const GLint height = texImage->Height;
+ const GLint depth = texImage->Height;
const GLenum target = texObj->Target;
GLenum faceTarget;
struct vertex {
@@ -3935,7 +3940,7 @@ decompress_texture_image(struct gl_context *ctx,
_mesa_BindSampler(ctx->Texture.CurrentUnit, decompress->Sampler);
}
- setup_texture_coords(faceTarget, slice, width, height,
+ setup_texture_coords(faceTarget, slice, width, height, depth,
verts[0].tex,
verts[1].tex,
verts[2].tex,
diff --git a/mesalib/src/mesa/drivers/dri/common/xmlpool/t_options.h b/mesalib/src/mesa/drivers/dri/common/xmlpool/t_options.h
index 1e7eced06..7b441c68f 100644
--- a/mesalib/src/mesa/drivers/dri/common/xmlpool/t_options.h
+++ b/mesalib/src/mesa/drivers/dri/common/xmlpool/t_options.h
@@ -75,6 +75,11 @@ DRI_CONF_OPT_BEGIN(always_flush_cache,bool,def) \
DRI_CONF_DESC(en,gettext("Enable flushing GPU caches with each draw call")) \
DRI_CONF_OPT_END
+#define DRI_CONF_DISABLE_THROTTLING(def) \
+DRI_CONF_OPT_BEGIN(disable_throttling,bool,def) \
+ DRI_CONF_DESC(en,gettext("Disable throttling on first batch after flush")) \
+DRI_CONF_OPT_END
+
#define DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN(def) \
DRI_CONF_OPT_BEGIN(force_glsl_extensions_warn,bool,def) \
DRI_CONF_DESC(en,gettext("Force GLSL extension default behavior to 'warn'")) \
diff --git a/mesalib/src/mesa/main/compiler.h b/mesalib/src/mesa/main/compiler.h
index 48712485a..8b23665e6 100644
--- a/mesalib/src/mesa/main/compiler.h
+++ b/mesalib/src/mesa/main/compiler.h
@@ -307,8 +307,9 @@ static INLINE GLuint CPU_TO_LE32(GLuint x)
* USE_IEEE: Determine if we're using IEEE floating point
*/
#if defined(__i386__) || defined(__386__) || defined(__sparc__) || \
- defined(__s390x__) || defined(__powerpc__) || \
+ defined(__s390__) || defined(__s390x__) || defined(__powerpc__) || \
defined(__x86_64__) || \
+ defined(__m68k__) || \
defined(ia64) || defined(__ia64__) || \
defined(__hppa__) || defined(hpux) || \
defined(__mips) || defined(_MIPS_ARCH) || \
diff --git a/mesalib/src/mesa/main/dd.h b/mesalib/src/mesa/main/dd.h
index 4860d4d12..8f3cd3d6b 100644
--- a/mesalib/src/mesa/main/dd.h
+++ b/mesalib/src/mesa/main/dd.h
@@ -195,9 +195,10 @@ struct dd_function_table {
GLenum srcFormat, GLenum srcType );
/**
- * Determine sample counts support for a particular format
+ * Determine sample counts support for a particular target and format
*
* \param ctx GL context
+ * \param target GL target enum
* \param internalFormat GL format enum
* \param samples Buffer to hold the returned sample counts.
* Drivers \b must \b not return more than 16 counts.
@@ -207,6 +208,7 @@ struct dd_function_table {
* \c internaFormat is not renderable, zero is returned.
*/
size_t (*QuerySamplesForFormat)(struct gl_context *ctx,
+ GLenum target,
GLenum internalFormat,
int samples[16]);
diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c
index 0126e2930..3fdf62667 100644
--- a/mesalib/src/mesa/main/fbobject.c
+++ b/mesalib/src/mesa/main/fbobject.c
@@ -43,6 +43,7 @@
#include "hash.h"
#include "macros.h"
#include "mfeatures.h"
+#include "multisample.h"
#include "mtypes.h"
#include "renderbuffer.h"
#include "state.h"
@@ -474,6 +475,32 @@ _mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
/**
+ * Return true if the framebuffer has a combined depth/stencil
+ * renderbuffer attached.
+ */
+GLboolean
+_mesa_has_depthstencil_combined(const struct gl_framebuffer *fb)
+{
+ const struct gl_renderbuffer_attachment *depth =
+ &fb->Attachment[BUFFER_DEPTH];
+ const struct gl_renderbuffer_attachment *stencil =
+ &fb->Attachment[BUFFER_STENCIL];
+
+ if (depth->Type == stencil->Type) {
+ if (depth->Type == GL_RENDERBUFFER_EXT &&
+ depth->Renderbuffer == stencil->Renderbuffer)
+ return GL_TRUE;
+
+ if (depth->Type == GL_TEXTURE &&
+ depth->Texture == stencil->Texture)
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
* For debug only.
*/
static void
@@ -1466,6 +1493,7 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
"glRenderbufferStorage" : "glRenderbufferStorageMultisample";
struct gl_renderbuffer *rb;
GLenum baseFormat;
+ GLenum sample_count_error;
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & VERBOSE_API) {
@@ -1509,9 +1537,14 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
/* NumSamples == 0 indicates non-multisampling */
samples = 0;
}
- else if (samples > (GLsizei) ctx->Const.MaxSamples) {
- /* note: driver may choose to use more samples than what's requested */
- _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
+
+ /* check the sample count;
+ * note: driver may choose to use more samples than what's requested
+ */
+ sample_count_error = _mesa_check_sample_count(ctx, target,
+ internalFormat, samples);
+ if (sample_count_error != GL_NO_ERROR) {
+ _mesa_error(ctx, sample_count_error, "%s(samples)", func);
return;
}
diff --git a/mesalib/src/mesa/main/fbobject.h b/mesalib/src/mesa/main/fbobject.h
index ec8b0afe4..0358864d7 100644
--- a/mesalib/src/mesa/main/fbobject.h
+++ b/mesalib/src/mesa/main/fbobject.h
@@ -113,6 +113,9 @@ _mesa_framebuffer_renderbuffer(struct gl_context *ctx,
extern void
_mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb);
+extern GLboolean
+_mesa_has_depthstencil_combined(const struct gl_framebuffer *fb);
+
extern void
_mesa_test_framebuffer_completeness(struct gl_context *ctx,
struct gl_framebuffer *fb);
diff --git a/mesalib/src/mesa/main/ff_fragment_shader.cpp b/mesalib/src/mesa/main/ff_fragment_shader.cpp
index 186988bbd..01a4542d7 100644
--- a/mesalib/src/mesa/main/ff_fragment_shader.cpp
+++ b/mesalib/src/mesa/main/ff_fragment_shader.cpp
@@ -1350,22 +1350,6 @@ create_new_program(struct gl_context *ctx, struct state_key *key)
_mesa_glsl_link_shader(ctx, p.shader_program);
- /* Set the sampler uniforms, and relink to get them into the linked
- * program.
- */
- struct gl_shader *const fs =
- p.shader_program->_LinkedShaders[MESA_SHADER_FRAGMENT];
- struct gl_program *const fp = fs->Program;
-
- _mesa_generate_parameters_list_for_uniforms(p.shader_program, fs,
- fp->Parameters);
-
- _mesa_associate_uniform_storage(ctx, p.shader_program, fp->Parameters);
-
- _mesa_update_shader_textures_used(p.shader_program, fp);
- if (ctx->Driver.SamplerUniformChange)
- ctx->Driver.SamplerUniformChange(ctx, fp->Target, fp);
-
if (!p.shader_program->LinkStatus)
_mesa_problem(ctx, "Failed to link fixed function fragment shader: %s\n",
p.shader_program->InfoLog);
diff --git a/mesalib/src/mesa/main/formatquery.c b/mesalib/src/mesa/main/formatquery.c
index bd895e874..78c5fbe5e 100644
--- a/mesalib/src/mesa/main/formatquery.c
+++ b/mesalib/src/mesa/main/formatquery.c
@@ -59,9 +59,10 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
case GL_TEXTURE_2D_MULTISAMPLE:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
- /* Mesa does not currently support GL_ARB_texture_multisample, so these
- * enums are not valid on this implementation either.
- */
+ /* These enums are only valid if ARB_texture_multisample is supported */
+ if (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample)
+ break;
+
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetInternalformativ(target=%s)",
@@ -96,7 +97,8 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
switch (pname) {
case GL_SAMPLES:
- count = ctx->Driver.QuerySamplesForFormat(ctx, internalformat, buffer);
+ count = ctx->Driver.QuerySamplesForFormat(ctx, target,
+ internalformat, buffer);
break;
case GL_NUM_SAMPLE_COUNTS: {
/* The driver can return 0, and we should pass that along to the
@@ -115,7 +117,7 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
* returned."
*/
const size_t num_samples =
- ctx->Driver.QuerySamplesForFormat(ctx, internalformat, buffer);
+ ctx->Driver.QuerySamplesForFormat(ctx, target, internalformat, buffer);
/* QuerySamplesForFormat writes some stuff to buffer, so we have to
* separately over-write it with the requested value.
diff --git a/mesalib/src/mesa/main/framebuffer.c b/mesalib/src/mesa/main/framebuffer.c
index d3abc2b30..619aaa337 100644
--- a/mesalib/src/mesa/main/framebuffer.c
+++ b/mesalib/src/mesa/main/framebuffer.c
@@ -923,10 +923,10 @@ _mesa_get_color_read_type(struct gl_context *ctx)
* Returns the read renderbuffer for the specified format.
*/
struct gl_renderbuffer *
-_mesa_get_read_renderbuffer_for_format(struct gl_context *ctx,
+_mesa_get_read_renderbuffer_for_format(const struct gl_context *ctx,
GLenum format)
{
- struct gl_framebuffer *rfb = ctx->ReadBuffer;
+ const struct gl_framebuffer *rfb = ctx->ReadBuffer;
if (_mesa_is_color_format(format)) {
return rfb->Attachment[rfb->_ColorReadBufferIndex].Renderbuffer;
diff --git a/mesalib/src/mesa/main/framebuffer.h b/mesalib/src/mesa/main/framebuffer.h
index 06db04925..9b94452d6 100644
--- a/mesalib/src/mesa/main/framebuffer.h
+++ b/mesalib/src/mesa/main/framebuffer.h
@@ -98,7 +98,7 @@ extern GLenum
_mesa_get_color_read_format(struct gl_context *ctx);
extern struct gl_renderbuffer *
-_mesa_get_read_renderbuffer_for_format(struct gl_context *ctx,
+_mesa_get_read_renderbuffer_for_format(const struct gl_context *ctx,
GLenum format);
extern void
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index 83b6c8984..a0e7e281d 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -1179,6 +1179,7 @@ struct gl_texture_object
GLfloat Priority; /**< in [0,1] */
GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */
GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */
+ GLint ImmutableLevels; /**< ES 3.0 / ARB_texture_view */
GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */
GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */
GLint CropRect[4]; /**< GL_OES_draw_texture */
@@ -1796,6 +1797,7 @@ struct gl_transform_feedback_state
typedef enum
{
PROGRAM_TEMPORARY, /**< machine->Temporary[] */
+ PROGRAM_ARRAY, /**< Arrays & Matrixes */
PROGRAM_INPUT, /**< machine->Inputs[] */
PROGRAM_OUTPUT, /**< machine->Outputs[] */
PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */
diff --git a/mesalib/src/mesa/main/multisample.c b/mesalib/src/mesa/main/multisample.c
index 248494615..b0f45d933 100644
--- a/mesalib/src/mesa/main/multisample.c
+++ b/mesalib/src/mesa/main/multisample.c
@@ -29,6 +29,7 @@
#include "main/multisample.h"
#include "main/mtypes.h"
#include "main/fbobject.h"
+#include "main/glformats.h"
/**
@@ -112,3 +113,79 @@ _mesa_SampleMaski(GLuint index, GLbitfield mask)
FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
ctx->Multisample.SampleMaskValue = mask;
}
+
+
+/* Helper for checking a requested sample count against the limit
+ * for a particular (target, internalFormat) pair. The limit imposed,
+ * and the error generated, both depend on which extensions are supported.
+ *
+ * Returns a GL error enum, or GL_NO_ERROR if the requested sample count is
+ * acceptable.
+ */
+GLenum
+_mesa_check_sample_count(struct gl_context *ctx, GLenum target,
+ GLenum internalFormat, GLsizei samples)
+{
+ /* If ARB_internalformat_query is supported, then treat its highest returned sample
+ * count as the absolute maximum for this format; it is allowed to exceed MAX_SAMPLES.
+ *
+ * From the ARB_internalformat_query spec:
+ *
+ * "If <samples is greater than the maximum number of samples supported
+ * for <internalformat> then the error INVALID_OPERATION is generated."
+ */
+ if (ctx->Extensions.ARB_internalformat_query) {
+ GLint buffer[16];
+ int count = ctx->Driver.QuerySamplesForFormat(ctx, target, internalFormat, buffer);
+ int limit = count ? buffer[0] : -1;
+
+ return samples > limit ? GL_INVALID_OPERATION : GL_NO_ERROR;
+ }
+
+ /* If ARB_texture_multisample is supported, we have separate limits,
+ * which may be lower than MAX_SAMPLES:
+ *
+ * From the ARB_texture_multisample spec, when describing the operation
+ * of RenderbufferStorageMultisample:
+ *
+ * "If <internalformat> is a signed or unsigned integer format and
+ * <samples> is greater than the value of MAX_INTEGER_SAMPLES, then the
+ * error INVALID_OPERATION is generated"
+ *
+ * And when describing the operation of TexImage*Multisample:
+ *
+ * "The error INVALID_OPERATION may be generated if any of the following are true:
+ *
+ * * <internalformat> is a depth/stencil-renderable format and <samples>
+ * is greater than the value of MAX_DEPTH_TEXTURE_SAMPLES
+ * * <internalformat> is a color-renderable format and <samples> is
+ * grater than the value of MAX_COLOR_TEXTURE_SAMPLES
+ * * <internalformat> is a signed or unsigned integer format and
+ * <samples> is greater than the value of MAX_INTEGER_SAMPLES
+ */
+
+ if (ctx->Extensions.ARB_texture_multisample) {
+ if (_mesa_is_enum_format_integer(internalFormat))
+ return samples > ctx->Const.MaxIntegerSamples ? GL_INVALID_OPERATION : GL_NO_ERROR;
+
+ if (target == GL_TEXTURE_2D_MULTISAMPLE ||
+ target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) {
+
+ if (_mesa_is_depth_or_stencil_format(internalFormat))
+ return samples > ctx->Const.MaxDepthTextureSamples
+ ? GL_INVALID_OPERATION : GL_NO_ERROR;
+ else
+ return samples > ctx->Const.MaxColorTextureSamples
+ ? GL_INVALID_OPERATION : GL_NO_ERROR;
+ }
+ }
+
+ /* No more specific limit is available, so just use MAX_SAMPLES:
+ *
+ * On p205 of the GL3.1 spec:
+ *
+ * "... or if samples is greater than MAX_SAMPLES, then the error
+ * INVALID_VALUE is generated"
+ */
+ return samples > ctx->Const.MaxSamples ? GL_INVALID_VALUE : GL_NO_ERROR;
+}
diff --git a/mesalib/src/mesa/main/multisample.h b/mesalib/src/mesa/main/multisample.h
index 9e6b8e0d3..f2f01de5c 100644
--- a/mesalib/src/mesa/main/multisample.h
+++ b/mesalib/src/mesa/main/multisample.h
@@ -44,4 +44,9 @@ _mesa_GetMultisamplefv(GLenum pname, GLuint index, GLfloat* val);
extern void GLAPIENTRY
_mesa_SampleMaski(GLuint index, GLbitfield mask);
+
+extern GLenum
+_mesa_check_sample_count(struct gl_context *ctx, GLenum target,
+ GLenum internalFormat, GLsizei samples);
+
#endif
diff --git a/mesalib/src/mesa/main/readpix.c b/mesalib/src/mesa/main/readpix.c
index 2f130ae9a..d3d09dea3 100644
--- a/mesalib/src/mesa/main/readpix.c
+++ b/mesalib/src/mesa/main/readpix.c
@@ -41,11 +41,212 @@
/**
- * Tries to implement glReadPixels() of GL_DEPTH_COMPONENT using memcpy of the
- * mapping.
+ * Return true if the conversion L=R+G+B is needed.
*/
static GLboolean
-fast_read_depth_pixels( struct gl_context *ctx,
+need_rgb_to_luminance_conversion(gl_format texFormat, GLenum format)
+{
+ GLenum baseTexFormat = _mesa_get_format_base_format(texFormat);
+
+ return (baseTexFormat == GL_RG ||
+ baseTexFormat == GL_RGB ||
+ baseTexFormat == GL_RGBA) &&
+ (format == GL_LUMINANCE || format == GL_LUMINANCE_ALPHA);
+}
+
+
+/**
+ * Return transfer op flags for this ReadPixels operation.
+ */
+static GLbitfield
+get_readpixels_transfer_ops(const struct gl_context *ctx, gl_format texFormat,
+ GLenum format, GLenum type, GLboolean uses_blit)
+{
+ GLbitfield transferOps = ctx->_ImageTransferState;
+
+ if (format == GL_DEPTH_COMPONENT ||
+ format == GL_DEPTH_STENCIL ||
+ format == GL_STENCIL_INDEX) {
+ return 0;
+ }
+
+ /* Pixel transfer ops (scale, bias, table lookup) do not apply
+ * to integer formats.
+ */
+ if (_mesa_is_enum_format_integer(format)) {
+ return 0;
+ }
+
+ if (uses_blit) {
+ /* For blit-based ReadPixels packing, the clamping is done automatically
+ * unless the type is float. */
+ if (ctx->Color._ClampReadColor == GL_TRUE &&
+ (type == GL_FLOAT || type == GL_HALF_FLOAT)) {
+ transferOps |= IMAGE_CLAMP_BIT;
+ }
+ }
+ else {
+ /* For CPU-based ReadPixels packing, the clamping must always be done
+ * for non-float types, */
+ if (ctx->Color._ClampReadColor == GL_TRUE ||
+ (type != GL_FLOAT && type != GL_HALF_FLOAT)) {
+ transferOps |= IMAGE_CLAMP_BIT;
+ }
+ }
+
+ /* If the format is unsigned normalized, we can ignore clamping
+ * because the values are already in the range [0,1] so it won't
+ * have any effect anyway.
+ */
+ if (_mesa_get_format_datatype(texFormat) == GL_UNSIGNED_NORMALIZED &&
+ !need_rgb_to_luminance_conversion(texFormat, format)) {
+ transferOps &= ~IMAGE_CLAMP_BIT;
+ }
+
+ return transferOps;
+}
+
+
+/**
+ * Return true if memcpy cannot be used for ReadPixels.
+ *
+ * If uses_blit is true, the function returns true if a simple 3D engine blit
+ * cannot be used for ReadPixels packing.
+ *
+ * NOTE: This doesn't take swizzling and format conversions between
+ * the readbuffer and the pixel pack buffer into account.
+ */
+GLboolean
+_mesa_readpixels_needs_slow_path(const struct gl_context *ctx, GLenum format,
+ GLenum type, GLboolean uses_blit)
+{
+ struct gl_renderbuffer *rb =
+ _mesa_get_read_renderbuffer_for_format(ctx, format);
+ GLenum srcType;
+
+ ASSERT(rb);
+
+ /* There are different rules depending on the base format. */
+ switch (format) {
+ case GL_DEPTH_STENCIL:
+ return !_mesa_has_depthstencil_combined(ctx->ReadBuffer) ||
+ ctx->Pixel.DepthScale != 1.0f || ctx->Pixel.DepthBias != 0.0f ||
+ ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset ||
+ ctx->Pixel.MapStencilFlag;
+
+ case GL_DEPTH_COMPONENT:
+ return ctx->Pixel.DepthScale != 1.0f || ctx->Pixel.DepthBias != 0.0f;
+
+ case GL_STENCIL_INDEX:
+ return ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset ||
+ ctx->Pixel.MapStencilFlag;
+
+ default:
+ /* Color formats. */
+ if (need_rgb_to_luminance_conversion(rb->Format, format)) {
+ return GL_TRUE;
+ }
+
+ /* Conversion between signed and unsigned integers needs masking
+ * (it isn't just memcpy). */
+ srcType = _mesa_get_format_datatype(rb->Format);
+
+ if ((srcType == GL_INT &&
+ (type == GL_UNSIGNED_INT ||
+ type == GL_UNSIGNED_SHORT ||
+ type == GL_UNSIGNED_BYTE)) ||
+ (srcType == GL_UNSIGNED_INT &&
+ (type == GL_INT ||
+ type == GL_SHORT ||
+ type == GL_BYTE))) {
+ return GL_TRUE;
+ }
+
+ /* And finally, see if there are any transfer ops. */
+ return get_readpixels_transfer_ops(ctx, rb->Format, format, type,
+ uses_blit) != 0;
+ }
+ return GL_FALSE;
+}
+
+
+static GLboolean
+readpixels_can_use_memcpy(const struct gl_context *ctx, GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *packing)
+{
+ struct gl_renderbuffer *rb =
+ _mesa_get_read_renderbuffer_for_format(ctx, format);
+
+ ASSERT(rb);
+
+ if (_mesa_readpixels_needs_slow_path(ctx, format, type, GL_FALSE)) {
+ return GL_FALSE;
+ }
+
+ /* The base internal format and the base Mesa format must match. */
+ if (rb->_BaseFormat != _mesa_get_format_base_format(rb->Format)) {
+ return GL_FALSE;
+ }
+
+ /* The Mesa format must match the input format and type. */
+ if (!_mesa_format_matches_format_and_type(rb->Format, format, type,
+ packing->SwapBytes)) {
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+static GLboolean
+readpixels_memcpy(struct gl_context *ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing)
+{
+ struct gl_renderbuffer *rb =
+ _mesa_get_read_renderbuffer_for_format(ctx, format);
+ GLubyte *dst, *map;
+ int dstStride, stride, j, texelBytes;
+
+ /* Fail if memcpy cannot be used. */
+ if (!readpixels_can_use_memcpy(ctx, format, type, packing)) {
+ return GL_FALSE;
+ }
+
+ dstStride = _mesa_image_row_stride(packing, width, format, type);
+ dst = (GLubyte *) _mesa_image_address2d(packing, pixels, width, height,
+ format, type, 0, 0);
+
+ ctx->Driver.MapRenderbuffer(ctx, rb, x, y, width, height, GL_MAP_READ_BIT,
+ &map, &stride);
+ if (!map) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glReadPixels");
+ return GL_TRUE; /* don't bother trying the slow path */
+ }
+
+ texelBytes = _mesa_get_format_bytes(rb->Format);
+
+ /* memcpy*/
+ for (j = 0; j < height; j++) {
+ memcpy(dst, map, width * texelBytes);
+ dst += dstStride;
+ map += stride;
+ }
+
+ ctx->Driver.UnmapRenderbuffer(ctx, rb);
+ return GL_TRUE;
+}
+
+
+/**
+ * Optimized path for conversion of depth values to GL_DEPTH_COMPONENT,
+ * GL_UNSIGNED_INT.
+ */
+static GLboolean
+read_uint_depth_pixels( struct gl_context *ctx,
GLint x, GLint y,
GLsizei width, GLsizei height,
GLenum type, GLvoid *pixels,
@@ -65,10 +266,6 @@ fast_read_depth_pixels( struct gl_context *ctx,
if (_mesa_get_format_datatype(rb->Format) != GL_UNSIGNED_NORMALIZED)
return GL_FALSE;
- if (!((type == GL_UNSIGNED_SHORT && rb->Format == MESA_FORMAT_Z16) ||
- type == GL_UNSIGNED_INT))
- return GL_FALSE;
-
ctx->Driver.MapRenderbuffer(ctx, rb, x, y, width, height, GL_MAP_READ_BIT,
&map, &stride);
@@ -82,12 +279,7 @@ fast_read_depth_pixels( struct gl_context *ctx,
GL_DEPTH_COMPONENT, type, 0, 0);
for (j = 0; j < height; j++) {
- if (type == GL_UNSIGNED_INT) {
- _mesa_unpack_uint_z_row(rb->Format, width, map, (GLuint *)dst);
- } else {
- ASSERT(type == GL_UNSIGNED_SHORT && rb->Format == MESA_FORMAT_Z16);
- memcpy(dst, map, width * 2);
- }
+ _mesa_unpack_uint_z_row(rb->Format, width, map, (GLuint *)dst);
map += stride;
dst += dstStride;
@@ -123,8 +315,10 @@ read_depth_pixels( struct gl_context *ctx,
ASSERT(x + width <= (GLint) rb->Width);
ASSERT(y + height <= (GLint) rb->Height);
- if (fast_read_depth_pixels(ctx, x, y, width, height, type, pixels, packing))
+ if (type == GL_UNSIGNED_INT &&
+ read_uint_depth_pixels(ctx, x, y, width, height, type, pixels, packing)) {
return;
+ }
dstStride = _mesa_image_row_stride(packing, width, GL_DEPTH_COMPONENT, type);
dst = (GLubyte *) _mesa_image_address2d(packing, pixels, width, height,
@@ -212,21 +406,20 @@ read_stencil_pixels( struct gl_context *ctx,
/**
- * Try to do glReadPixels of RGBA data using a simple memcpy or swizzle.
+ * Try to do glReadPixels of RGBA data using swizzle.
* \return GL_TRUE if successful, GL_FALSE otherwise (use the slow path)
*/
static GLboolean
-fast_read_rgba_pixels_memcpy( struct gl_context *ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing,
- GLbitfield transferOps )
+read_rgba_pixels_swizzle(struct gl_context *ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing)
{
struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
GLubyte *dst, *map;
- int dstStride, stride, j, texelBytes;
+ int dstStride, stride, j;
GLboolean swizzle_rb = GL_FALSE, copy_xrgb = GL_FALSE;
/* XXX we could check for other swizzle/special cases here as needed */
@@ -242,19 +435,9 @@ fast_read_rgba_pixels_memcpy( struct gl_context *ctx,
!ctx->Pack.SwapBytes) {
copy_xrgb = GL_TRUE;
}
- else if (!_mesa_format_matches_format_and_type(rb->Format, format, type,
- ctx->Pack.SwapBytes))
- return GL_FALSE;
-
- /* If the format is unsigned normalized then we can ignore clamping
- * because the values are already in the range [0,1] so it won't
- * have any effect anyway.
- */
- if (_mesa_get_format_datatype(rb->Format) == GL_UNSIGNED_NORMALIZED)
- transferOps &= ~IMAGE_CLAMP_BIT;
-
- if (transferOps)
+ else {
return GL_FALSE;
+ }
dstStride = _mesa_image_row_stride(packing, width, format, type);
dst = (GLubyte *) _mesa_image_address2d(packing, pixels, width, height,
@@ -267,8 +450,6 @@ fast_read_rgba_pixels_memcpy( struct gl_context *ctx,
return GL_TRUE; /* don't bother trying the slow path */
}
- texelBytes = _mesa_get_format_bytes(rb->Format);
-
if (swizzle_rb) {
/* swap R/B */
for (j = 0; j < height; j++) {
@@ -294,13 +475,6 @@ fast_read_rgba_pixels_memcpy( struct gl_context *ctx,
dst += dstStride;
map += stride;
}
- } else {
- /* just memcpy */
- for (j = 0; j < height; j++) {
- memcpy(dst, map, width * texelBytes);
- dst += dstStride;
- map += stride;
- }
}
ctx->Driver.UnmapRenderbuffer(ctx, rb);
@@ -379,22 +553,20 @@ read_rgba_pixels( struct gl_context *ctx,
GLenum format, GLenum type, GLvoid *pixels,
const struct gl_pixelstore_attrib *packing )
{
- GLbitfield transferOps = ctx->_ImageTransferState;
+ GLbitfield transferOps;
struct gl_framebuffer *fb = ctx->ReadBuffer;
struct gl_renderbuffer *rb = fb->_ColorReadBuffer;
if (!rb)
return;
- if ((ctx->Color._ClampReadColor == GL_TRUE || type != GL_FLOAT) &&
- !_mesa_is_enum_format_integer(format)) {
- transferOps |= IMAGE_CLAMP_BIT;
- }
+ transferOps = get_readpixels_transfer_ops(ctx, rb->Format, format, type,
+ GL_FALSE);
/* Try the optimized paths first. */
- if (fast_read_rgba_pixels_memcpy(ctx, x, y, width, height,
- format, type, pixels, packing,
- transferOps)) {
+ if (!transferOps &&
+ read_rgba_pixels_swizzle(ctx, x, y, width, height,
+ format, type, pixels, packing)) {
return;
}
@@ -649,6 +821,14 @@ _mesa_readpixels(struct gl_context *ctx,
pixels = _mesa_map_pbo_dest(ctx, &clippedPacking, pixels);
if (pixels) {
+ /* Try memcpy first. */
+ if (readpixels_memcpy(ctx, x, y, width, height, format, type,
+ pixels, packing)) {
+ _mesa_unmap_pbo_dest(ctx, &clippedPacking);
+ return;
+ }
+
+ /* Otherwise take the slow path. */
switch (format) {
case GL_STENCIL_INDEX:
read_stencil_pixels(ctx, x, y, width, height, type, pixels,
diff --git a/mesalib/src/mesa/main/readpix.h b/mesalib/src/mesa/main/readpix.h
index 5a5f73f52..7491c22ff 100644
--- a/mesalib/src/mesa/main/readpix.h
+++ b/mesalib/src/mesa/main/readpix.h
@@ -33,6 +33,10 @@ struct gl_context;
struct gl_pixelstore_attrib;
+extern GLboolean
+_mesa_readpixels_needs_slow_path(const struct gl_context *ctx, GLenum format,
+ GLenum type, GLboolean uses_blit);
+
extern void
_mesa_readpixels(struct gl_context *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
diff --git a/mesalib/src/mesa/main/texgetimage.c b/mesalib/src/mesa/main/texgetimage.c
index 7299a4b23..74b09ef2c 100644
--- a/mesalib/src/mesa/main/texgetimage.c
+++ b/mesalib/src/mesa/main/texgetimage.c
@@ -518,6 +518,7 @@ get_tex_rgba(struct gl_context *ctx, GLuint dimensions,
if (type_needs_clamping(type)) {
/* the returned image type can't have negative values */
if (dataType == GL_FLOAT ||
+ dataType == GL_HALF_FLOAT ||
dataType == GL_SIGNED_NORMALIZED ||
format == GL_LUMINANCE ||
format == GL_LUMINANCE_ALPHA) {
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index 4042e7969..bc755ae79 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -40,6 +40,7 @@
#include "imports.h"
#include "macros.h"
#include "mfeatures.h"
+#include "multisample.h"
#include "state.h"
#include "texcompress.h"
#include "texcompress_cpal.h"
@@ -4199,6 +4200,7 @@ teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
struct gl_texture_image *texImage;
GLboolean sizeOK, dimensionsOK;
gl_format texFormat;
+ GLenum sample_count_error;
GET_CURRENT_CONTEXT(ctx);
@@ -4225,35 +4227,13 @@ teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
return;
}
- if (_mesa_is_enum_format_integer(internalformat)) {
- if (samples > ctx->Const.MaxIntegerSamples) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%uDMultisample(samples>GL_MAX_INTEGER_SAMPLES)",
- dims);
- return;
- }
- }
- else if (_mesa_is_depth_or_stencil_format(internalformat)) {
- if (samples > ctx->Const.MaxDepthTextureSamples) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%uDMultisample(samples>GL_MAX_DEPTH_TEXTURE_SAMPLES)",
- dims);
- return;
- }
- }
- else {
- if (samples > ctx->Const.MaxColorTextureSamples) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%uDMultisample(samples>GL_MAX_COLOR_TEXTURE_SAMPLES)",
- dims);
- return;
- }
+ sample_count_error = _mesa_check_sample_count(ctx, target,
+ internalformat, samples);
+ if (sample_count_error != GL_NO_ERROR) {
+ _mesa_error(ctx, sample_count_error, "glTexImage%uDMultisample(samples)", dims);
+ return;
}
- /* TODO: should ask the driver for the exact limit for this internalformat
- * once IDR's internalformat_query bits land
- */
-
texObj = _mesa_get_current_tex_object(ctx, target);
texImage = _mesa_get_tex_image(ctx, texObj, 0, 0);
diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
index 120845b4a..bd2f75170 100644
--- a/mesalib/src/mesa/main/texparam.c
+++ b/mesalib/src/mesa/main/texparam.c
@@ -1460,6 +1460,12 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
*params = (GLfloat) obj->Immutable;
break;
+ case GL_TEXTURE_IMMUTABLE_LEVELS:
+ if (!_mesa_is_gles3(ctx))
+ goto invalid_pname;
+ *params = (GLfloat) obj->ImmutableLevels;
+ break;
+
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
goto invalid_pname;
@@ -1637,6 +1643,12 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
*params = (GLint) obj->Immutable;
break;
+ case GL_TEXTURE_IMMUTABLE_LEVELS:
+ if (!_mesa_is_gles3(ctx))
+ goto invalid_pname;
+ *params = obj->ImmutableLevels;
+ break;
+
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
goto invalid_pname;
diff --git a/mesalib/src/mesa/main/texstorage.c b/mesalib/src/mesa/main/texstorage.c
index 00f19bae5..675fd745b 100644
--- a/mesalib/src/mesa/main/texstorage.c
+++ b/mesalib/src/mesa/main/texstorage.c
@@ -397,6 +397,7 @@ texstorage(GLuint dims, GLenum target, GLsizei levels, GLenum internalformat,
}
texObj->Immutable = GL_TRUE;
+ texObj->ImmutableLevels = levels;
}
}
diff --git a/mesalib/src/mesa/state_tracker/st_cb_blit.c b/mesalib/src/mesa/state_tracker/st_cb_blit.c
index c463e3b04..50cab4294 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_blit.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_blit.c
@@ -239,31 +239,22 @@ st_BlitFramebuffer(struct gl_context *ctx,
/* depth and/or stencil blit */
/* get src/dst depth surfaces */
- struct gl_renderbuffer_attachment *srcDepth =
- &readFB->Attachment[BUFFER_DEPTH];
- struct gl_renderbuffer_attachment *dstDepth =
- &drawFB->Attachment[BUFFER_DEPTH];
- struct gl_renderbuffer_attachment *srcStencil =
- &readFB->Attachment[BUFFER_STENCIL];
- struct gl_renderbuffer_attachment *dstStencil =
- &drawFB->Attachment[BUFFER_STENCIL];
-
struct st_renderbuffer *srcDepthRb =
- st_renderbuffer(srcDepth->Renderbuffer);
+ st_renderbuffer(readFB->Attachment[BUFFER_DEPTH].Renderbuffer);
struct st_renderbuffer *dstDepthRb =
- st_renderbuffer(dstDepth->Renderbuffer);
+ st_renderbuffer(drawFB->Attachment[BUFFER_DEPTH].Renderbuffer);
struct pipe_surface *dstDepthSurf =
dstDepthRb ? dstDepthRb->surface : NULL;
struct st_renderbuffer *srcStencilRb =
- st_renderbuffer(srcStencil->Renderbuffer);
+ st_renderbuffer(readFB->Attachment[BUFFER_STENCIL].Renderbuffer);
struct st_renderbuffer *dstStencilRb =
- st_renderbuffer(dstStencil->Renderbuffer);
+ st_renderbuffer(drawFB->Attachment[BUFFER_STENCIL].Renderbuffer);
struct pipe_surface *dstStencilSurf =
dstStencilRb ? dstStencilRb->surface : NULL;
- if (st_is_depth_stencil_combined(srcDepth, srcStencil) &&
- st_is_depth_stencil_combined(dstDepth, dstStencil)) {
+ if (_mesa_has_depthstencil_combined(readFB) &&
+ _mesa_has_depthstencil_combined(drawFB)) {
blit.mask = 0;
if (mask & GL_DEPTH_BUFFER_BIT)
blit.mask |= PIPE_MASK_Z;
diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
index 87c5b048c..4452e523b 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
@@ -547,30 +547,6 @@ st_validate_attachment(struct gl_context *ctx,
return valid;
}
-
-
-/**
- * Check if two renderbuffer attachments name a combined depth/stencil
- * renderbuffer.
- */
-GLboolean
-st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth,
- const struct gl_renderbuffer_attachment *stencil)
-{
- assert(depth && stencil);
-
- if (depth->Type == stencil->Type) {
- if (depth->Type == GL_RENDERBUFFER_EXT &&
- depth->Renderbuffer == stencil->Renderbuffer)
- return GL_TRUE;
-
- if (depth->Type == GL_TEXTURE &&
- depth->Texture == stencil->Texture)
- return GL_TRUE;
- }
-
- return GL_FALSE;
-}
/**
diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.h b/mesalib/src/mesa/state_tracker/st_cb_fbo.h
index 506fd06d6..461dbe985 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_fbo.h
+++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.h
@@ -76,9 +76,4 @@ st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw);
extern void
st_init_fbo_functions(struct dd_function_table *functions);
-extern GLboolean
-st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth,
- const struct gl_renderbuffer_attachment *stencil);
-
-
#endif /* ST_CB_FBO_H */
diff --git a/mesalib/src/mesa/state_tracker/st_cb_readpixels.c b/mesalib/src/mesa/state_tracker/st_cb_readpixels.c
index 6b824b161..bfed98870 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_readpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_readpixels.c
@@ -25,35 +25,209 @@
*
**************************************************************************/
-
+#include "main/image.h"
+#include "main/pbo.h"
#include "main/imports.h"
#include "main/readpix.h"
+#include "main/enums.h"
+#include "main/framebuffer.h"
+#include "util/u_inlines.h"
+#include "util/u_format.h"
+#include "st_cb_fbo.h"
#include "st_atom.h"
#include "st_context.h"
#include "st_cb_bitmap.h"
#include "st_cb_readpixels.h"
+#include "state_tracker/st_cb_texture.h"
+#include "state_tracker/st_format.h"
+#include "state_tracker/st_texture.h"
/**
- * The only special thing we need to do for the state tracker's
- * glReadPixels is to validate state (to be sure we have up-to-date
- * framebuffer surfaces) and flush the bitmap cache prior to reading.
+ * This uses a blit to copy the read buffer to a texture format which matches
+ * the format and type combo and then a fast read-back is done using memcpy.
+ * We can do arbitrary X/Y/Z/W/0/1 swizzling here as long as there is
+ * a format which matches the swizzling.
+ *
+ * If such a format isn't available, we fall back to _mesa_readpixels.
+ *
+ * NOTE: Some drivers use a blit to convert between tiled and linear
+ * texture layouts during texture uploads/downloads, so the blit
+ * we do here should be free in such cases.
*/
static void
st_readpixels(struct gl_context *ctx, GLint x, GLint y,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack,
- GLvoid *dest)
+ GLvoid *pixels)
{
struct st_context *st = st_context(ctx);
+ struct gl_renderbuffer *rb =
+ _mesa_get_read_renderbuffer_for_format(ctx, format);
+ struct st_renderbuffer *strb = st_renderbuffer(rb);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ struct pipe_resource *src;
+ struct pipe_resource *dst = NULL;
+ struct pipe_resource dst_templ;
+ enum pipe_format dst_format, src_format;
+ struct pipe_blit_info blit;
+ unsigned bind = PIPE_BIND_TRANSFER_READ;
+ struct pipe_transfer *tex_xfer;
+ ubyte *map = NULL;
+ /* Validate state (to be sure we have up-to-date framebuffer surfaces)
+ * and flush the bitmap cache prior to reading. */
st_validate_state(st);
st_flush_bitmap_cache(st);
- _mesa_readpixels(ctx, x, y, width, height, format, type, pack, dest);
-}
+ if (!st->prefer_blit_based_texture_transfer) {
+ goto fallback;
+ }
+
+ /* This must be done after state validation. */
+ src = strb->texture;
+
+ /* XXX Fallback for depth-stencil formats due to an incomplete
+ * stencil blit implementation in some drivers. */
+ if (format == GL_DEPTH_STENCIL) {
+ goto fallback;
+ }
+
+ /* We are creating a texture of the size of the region being read back.
+ * Need to check for NPOT texture support. */
+ if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES) &&
+ (!util_is_power_of_two(width) ||
+ !util_is_power_of_two(height))) {
+ goto fallback;
+ }
+
+ /* If the base internal format and the texture format don't match, we have
+ * to use the slow path. */
+ if (rb->_BaseFormat !=
+ _mesa_get_format_base_format(rb->Format)) {
+ goto fallback;
+ }
+
+ /* See if the texture format already matches the format and type,
+ * in which case the memcpy-based fast path will likely be used and
+ * we don't have to blit. */
+ if (_mesa_format_matches_format_and_type(rb->Format, format,
+ type, pack->SwapBytes)) {
+ goto fallback;
+ }
+
+ if (_mesa_readpixels_needs_slow_path(ctx, format, type, GL_TRUE)) {
+ goto fallback;
+ }
+
+ /* Convert the source format to what is expected by ReadPixels
+ * and see if it's supported. */
+ src_format = util_format_linear(src->format);
+ src_format = util_format_luminance_to_red(src_format);
+ src_format = util_format_intensity_to_red(src_format);
+
+ if (!src_format ||
+ !screen->is_format_supported(screen, src_format, src->target,
+ src->nr_samples,
+ PIPE_BIND_SAMPLER_VIEW)) {
+ printf("fallback: src format unsupported %s\n", util_format_short_name(src_format));
+ goto fallback;
+ }
+
+ if (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL)
+ bind |= PIPE_BIND_DEPTH_STENCIL;
+ else
+ bind |= PIPE_BIND_RENDER_TARGET;
+
+ /* Choose the destination format by finding the best match
+ * for the format+type combo. */
+ dst_format = st_choose_matching_format(screen, bind, format, type,
+ pack->SwapBytes);
+ if (dst_format == PIPE_FORMAT_NONE) {
+ printf("fallback: no matching format for %s, %s\n",
+ _mesa_lookup_enum_by_nr(format), _mesa_lookup_enum_by_nr(type));
+ goto fallback;
+ }
+
+ /* create the destination texture */
+ memset(&dst_templ, 0, sizeof(dst_templ));
+ dst_templ.target = PIPE_TEXTURE_2D;
+ dst_templ.format = dst_format;
+ dst_templ.bind = bind;
+ dst_templ.usage = PIPE_USAGE_STAGING;
+
+ st_gl_texture_dims_to_pipe_dims(GL_TEXTURE_2D, width, height, 1,
+ &dst_templ.width0, &dst_templ.height0,
+ &dst_templ.depth0, &dst_templ.array_size);
+
+ dst = screen->resource_create(screen, &dst_templ);
+ if (!dst) {
+ goto fallback;
+ }
+
+ blit.src.resource = src;
+ blit.src.level = strb->rtt_level;
+ blit.src.format = src_format;
+ blit.dst.resource = dst;
+ blit.dst.level = 0;
+ blit.dst.format = dst->format;
+ blit.src.box.x = x;
+ blit.dst.box.x = 0;
+ blit.src.box.y = y;
+ blit.dst.box.y = 0;
+ blit.src.box.z = strb->rtt_face + strb->rtt_slice;
+ blit.dst.box.z = 0;
+ blit.src.box.width = blit.dst.box.width = width;
+ blit.src.box.height = blit.dst.box.height = height;
+ blit.src.box.depth = blit.dst.box.depth = 1;
+ blit.mask = st_get_blit_mask(rb->_BaseFormat, format);
+ blit.filter = PIPE_TEX_FILTER_NEAREST;
+ blit.scissor_enable = FALSE;
+
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ blit.src.box.y = rb->Height - blit.src.box.y;
+ blit.src.box.height = -blit.src.box.height;
+ }
+
+ /* blit */
+ st->pipe->blit(st->pipe, &blit);
+
+ /* map resources */
+ pixels = _mesa_map_pbo_dest(ctx, pack, pixels);
+
+ map = pipe_transfer_map_3d(pipe, dst, 0, PIPE_TRANSFER_READ,
+ 0, 0, 0, width, height, 1, &tex_xfer);
+ if (!map) {
+ _mesa_unmap_pbo_dest(ctx, pack);
+ pipe_resource_reference(&dst, NULL);
+ goto fallback;
+ }
+
+ /* memcpy data into a user buffer */
+ {
+ const uint bytesPerRow = width * util_format_get_blocksize(dst_format);
+ GLuint row;
+
+ for (row = 0; row < height; row++) {
+ GLvoid *dest = _mesa_image_address3d(pack, pixels,
+ width, height, format,
+ type, 0, row, 0);
+ memcpy(dest, map, bytesPerRow);
+ map += tex_xfer->stride;
+ }
+ }
+
+ pipe_transfer_unmap(pipe, tex_xfer);
+ _mesa_unmap_pbo_dest(ctx, pack);
+ pipe_resource_reference(&dst, NULL);
+ return;
+
+fallback:
+ _mesa_readpixels(ctx, x, y, width, height, format, type, pack, pixels);
+}
void st_init_readpixels_functions(struct dd_function_table *functions)
{
diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c
index c922a3164..94fbbf7be 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c
@@ -68,7 +68,7 @@
#define DBG if (0) printf
-static enum pipe_texture_target
+enum pipe_texture_target
gl_target_to_pipe(GLenum target)
{
switch (target) {
@@ -542,8 +542,8 @@ prep_teximage(struct gl_context *ctx, struct gl_texture_image *texImage,
* Return a writemask for the gallium blit. The parameters can be base
* formats or "format" from glDrawPixels/glTexImage/glGetTexImage.
*/
-static unsigned
-get_blit_mask(GLenum srcFormat, GLenum dstFormat)
+unsigned
+st_get_blit_mask(GLenum srcFormat, GLenum dstFormat)
{
switch (dstFormat) {
case GL_DEPTH_STENCIL:
@@ -608,6 +608,10 @@ st_TexSubImage(struct gl_context *ctx, GLuint dims,
unsigned bind;
GLubyte *map;
+ if (!st->prefer_blit_based_texture_transfer) {
+ goto fallback;
+ }
+
if (!dst) {
goto fallback;
}
@@ -769,7 +773,7 @@ st_TexSubImage(struct gl_context *ctx, GLuint dims,
blit.src.box.width = blit.dst.box.width = width;
blit.src.box.height = blit.dst.box.height = height;
blit.src.box.depth = blit.dst.box.depth = depth;
- blit.mask = get_blit_mask(format, texImage->_BaseFormat);
+ blit.mask = st_get_blit_mask(format, texImage->_BaseFormat);
blit.filter = PIPE_TEX_FILTER_NEAREST;
blit.scissor_enable = FALSE;
@@ -860,6 +864,10 @@ st_GetTexImage(struct gl_context * ctx,
ubyte *map = NULL;
boolean done = FALSE;
+ if (!st->prefer_blit_based_texture_transfer) {
+ goto fallback;
+ }
+
if (!stImage->pt) {
goto fallback;
}
@@ -996,7 +1004,7 @@ st_GetTexImage(struct gl_context * ctx,
blit.src.box.width = blit.dst.box.width = width;
blit.src.box.height = blit.dst.box.height = height;
blit.src.box.depth = blit.dst.box.depth = depth;
- blit.mask = get_blit_mask(texImage->_BaseFormat, format);
+ blit.mask = st_get_blit_mask(texImage->_BaseFormat, format);
blit.filter = PIPE_TEX_FILTER_NEAREST;
blit.scissor_enable = FALSE;
@@ -1370,7 +1378,7 @@ st_CopyTexSubImage(struct gl_context *ctx, GLuint dims,
blit.dst.box.width = width;
blit.dst.box.height = height;
blit.dst.box.depth = 1;
- blit.mask = get_blit_mask(rb->_BaseFormat, texImage->_BaseFormat);
+ blit.mask = st_get_blit_mask(rb->_BaseFormat, texImage->_BaseFormat);
blit.filter = PIPE_TEX_FILTER_NEAREST;
/* 1D array textures need special treatment.
diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.h b/mesalib/src/mesa/state_tracker/st_cb_texture.h
index 27956bcc2..7f70d0b25 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_texture.h
+++ b/mesalib/src/mesa/state_tracker/st_cb_texture.h
@@ -38,6 +38,12 @@ struct gl_texture_object;
struct pipe_context;
struct st_context;
+extern enum pipe_texture_target
+gl_target_to_pipe(GLenum target);
+
+unsigned
+st_get_blit_mask(GLenum srcFormat, GLenum dstFormat);
+
extern GLboolean
st_finalize_texture(struct gl_context *ctx,
struct pipe_context *pipe,
diff --git a/mesalib/src/mesa/state_tracker/st_context.c b/mesalib/src/mesa/state_tracker/st_context.c
index f9a584ba0..cc87f2bb3 100644
--- a/mesalib/src/mesa/state_tracker/st_context.c
+++ b/mesalib/src/mesa/state_tracker/st_context.c
@@ -182,6 +182,11 @@ st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
st->has_stencil_export =
screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
+ st->prefer_blit_based_texture_transfer = screen->get_param(screen,
+ PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
+
+ st->needs_texcoord_semantic =
+ screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
/* GL limits and extensions */
st_init_limits(st);
diff --git a/mesalib/src/mesa/state_tracker/st_context.h b/mesalib/src/mesa/state_tracker/st_context.h
index b9a98cd05..8786a036f 100644
--- a/mesalib/src/mesa/state_tracker/st_context.h
+++ b/mesalib/src/mesa/state_tracker/st_context.h
@@ -84,6 +84,9 @@ struct st_context
boolean has_stencil_export; /**< can do shader stencil export? */
boolean has_time_elapsed;
boolean has_shader_model3;
+ boolean prefer_blit_based_texture_transfer;
+
+ boolean needs_texcoord_semantic;
/* On old libGL's for linux we need to invalidate the drawables
* on glViewpport calls, this is set via a option.
diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c
index 5fd44e76d..a15706a03 100644
--- a/mesalib/src/mesa/state_tracker/st_format.c
+++ b/mesalib/src/mesa/state_tracker/st_format.c
@@ -1769,13 +1769,15 @@ st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
* Called via ctx->Driver.ChooseTextureFormat().
*/
size_t
-st_QuerySamplesForFormat(struct gl_context *ctx, GLenum internalFormat,
- int samples[16])
+st_QuerySamplesForFormat(struct gl_context *ctx, GLenum target,
+ GLenum internalFormat, int samples[16])
{
struct st_context *st = st_context(ctx);
enum pipe_format format;
unsigned i, bind, num_sample_counts = 0;
+ (void) target;
+
if (_mesa_is_depth_or_stencil_format(internalFormat))
bind = PIPE_BIND_DEPTH_STENCIL;
else
diff --git a/mesalib/src/mesa/state_tracker/st_format.h b/mesalib/src/mesa/state_tracker/st_format.h
index 3db409b74..0a1c18d92 100644
--- a/mesalib/src/mesa/state_tracker/st_format.h
+++ b/mesalib/src/mesa/state_tracker/st_format.h
@@ -67,8 +67,8 @@ st_ChooseTextureFormat(struct gl_context * ctx, GLenum target,
GLenum format, GLenum type);
size_t
-st_QuerySamplesForFormat(struct gl_context *ctx, GLenum internalFormat,
- int samples[16]);
+st_QuerySamplesForFormat(struct gl_context *ctx, GLenum target,
+ GLenum internalFormat, int samples[16]);
/* can we use a sampler view to translate these formats
only used to make TFP so far */
diff --git a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 0cef092d3..e3718eeda 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -85,6 +85,11 @@ extern "C" {
*/
#define MAX_TEMPS 4096
+/**
+ * Maximum number of arrays
+ */
+#define MAX_ARRAYS 256
+
/* will be 4 for GLSL 4.00 */
#define MAX_GLSL_TEXTURE_OFFSET 1
@@ -315,9 +320,11 @@ public:
int next_temp;
+ unsigned array_sizes[MAX_ARRAYS];
+ unsigned next_array;
+
int num_address_regs;
int samplers_used;
- bool indirect_addr_temps;
bool indirect_addr_consts;
int glsl_version;
@@ -549,9 +556,6 @@ glsl_to_tgsi_visitor::emit(ir_instruction *ir, unsigned op,
/* Update indirect addressing status used by TGSI */
if (dst.reladdr) {
switch(dst.file) {
- case PROGRAM_TEMPORARY:
- this->indirect_addr_temps = true;
- break;
case PROGRAM_LOCAL_PARAM:
case PROGRAM_ENV_PARAM:
case PROGRAM_STATE_VAR:
@@ -570,9 +574,6 @@ glsl_to_tgsi_visitor::emit(ir_instruction *ir, unsigned op,
for (i=0; i<3; i++) {
if(inst->src[i].reladdr) {
switch(inst->src[i].file) {
- case PROGRAM_TEMPORARY:
- this->indirect_addr_temps = true;
- break;
case PROGRAM_LOCAL_PARAM:
case PROGRAM_ENV_PARAM:
case PROGRAM_STATE_VAR:
@@ -1005,17 +1006,26 @@ glsl_to_tgsi_visitor::get_temp(const glsl_type *type)
st_src_reg src;
src.type = native_integers ? type->base_type : GLSL_TYPE_FLOAT;
- src.file = PROGRAM_TEMPORARY;
- src.index = next_temp;
src.reladdr = NULL;
- next_temp += type_size(type);
+ src.negate = 0;
+
+ if (type->is_array() || type->is_matrix()) {
+ src.file = PROGRAM_ARRAY;
+ src.index = next_array << 16 | 0x8000;
+ array_sizes[next_array] = type_size(type);
+ ++next_array;
+
+ } else {
+ src.file = PROGRAM_TEMPORARY;
+ src.index = next_temp;
+ next_temp += type_size(type);
+ }
if (type->is_array() || type->is_record()) {
src.swizzle = SWIZZLE_NOOP;
} else {
src.swizzle = swizzle_for_size(type->vector_elements);
}
- src.negate = 0;
return src;
}
@@ -1078,13 +1088,11 @@ glsl_to_tgsi_visitor::visit(ir_variable *ir)
*/
assert((int) ir->num_state_slots == type_size(ir->type));
- storage = new(mem_ctx) variable_storage(ir, PROGRAM_TEMPORARY,
- this->next_temp);
- this->variables.push_tail(storage);
- this->next_temp += type_size(ir->type);
+ dst = st_dst_reg(get_temp(ir->type));
+
+ storage = new(mem_ctx) variable_storage(ir, dst.file, dst.index);
- dst = st_dst_reg(st_src_reg(PROGRAM_TEMPORARY, storage->index,
- native_integers ? ir->type->base_type : GLSL_TYPE_FLOAT));
+ this->variables.push_tail(storage);
}
@@ -2052,11 +2060,11 @@ glsl_to_tgsi_visitor::visit(ir_dereference_variable *ir)
break;
case ir_var_auto:
case ir_var_temporary:
- entry = new(mem_ctx) variable_storage(var, PROGRAM_TEMPORARY,
- this->next_temp);
+ st_src_reg src = get_temp(var->type);
+
+ entry = new(mem_ctx) variable_storage(var, src.file, src.index);
this->variables.push_tail(entry);
- next_temp += type_size(var->type);
break;
}
@@ -2574,11 +2582,10 @@ glsl_to_tgsi_visitor::get_function_signature(ir_function_signature *sig)
storage = find_variable_storage(param);
assert(!storage);
- storage = new(mem_ctx) variable_storage(param, PROGRAM_TEMPORARY,
- this->next_temp);
- this->variables.push_tail(storage);
+ st_src_reg src = get_temp(param->type);
- this->next_temp += type_size(param->type);
+ storage = new(mem_ctx) variable_storage(param, src.file, src.index);
+ this->variables.push_tail(storage);
}
if (!sig->return_type->is_void()) {
@@ -2978,12 +2985,12 @@ glsl_to_tgsi_visitor::glsl_to_tgsi_visitor()
{
result.file = PROGRAM_UNDEFINED;
next_temp = 1;
+ next_array = 0;
next_signature_id = 1;
num_immediates = 0;
current_function = NULL;
num_address_regs = 0;
samplers_used = 0;
- indirect_addr_temps = false;
indirect_addr_consts = false;
glsl_version = 0;
native_integers = false;
@@ -3183,7 +3190,8 @@ glsl_to_tgsi_visitor::simplify_cmp(void)
assert(inst->dst.index < MAX_TEMPS);
prevWriteMask = tempWrites[inst->dst.index];
tempWrites[inst->dst.index] |= inst->dst.writemask;
- }
+ } else
+ break;
/* For a CMP to be considered a conditional write, the destination
* register and source register two must be the same. */
@@ -3821,7 +3829,6 @@ get_pixel_transfer_visitor(struct st_fragment_program *fp,
v->next_temp = original->next_temp;
v->num_address_regs = original->num_address_regs;
v->samplers_used = prog->SamplersUsed = original->samplers_used;
- v->indirect_addr_temps = original->indirect_addr_temps;
v->indirect_addr_consts = original->indirect_addr_consts;
memcpy(&v->immediates, &original->immediates, sizeof(v->immediates));
v->num_immediates = original->num_immediates;
@@ -3952,7 +3959,6 @@ get_bitmap_visitor(struct st_fragment_program *fp,
v->next_temp = original->next_temp;
v->num_address_regs = original->num_address_regs;
v->samplers_used = prog->SamplersUsed = original->samplers_used;
- v->indirect_addr_temps = original->indirect_addr_temps;
v->indirect_addr_consts = original->indirect_addr_consts;
memcpy(&v->immediates, &original->immediates, sizeof(v->immediates));
v->num_immediates = original->num_immediates;
@@ -4014,6 +4020,7 @@ struct st_translate {
struct ureg_program *ureg;
struct ureg_dst temps[MAX_TEMPS];
+ struct ureg_dst arrays[MAX_ARRAYS];
struct ureg_src *constants;
struct ureg_src *immediates;
struct ureg_dst outputs[PIPE_MAX_SHADER_OUTPUTS];
@@ -4022,6 +4029,8 @@ struct st_translate {
struct ureg_src samplers[PIPE_MAX_SAMPLERS];
struct ureg_src systemValues[SYSTEM_VALUE_MAX];
+ unsigned array_sizes[MAX_ARRAYS];
+
const GLuint *inputMapping;
const GLuint *outputMapping;
@@ -4132,16 +4141,34 @@ dst_register(struct st_translate *t,
gl_register_file file,
GLuint index)
{
+ unsigned array;
+
switch(file) {
case PROGRAM_UNDEFINED:
return ureg_dst_undef();
case PROGRAM_TEMPORARY:
+ assert(index >= 0);
+ assert(index < (int) Elements(t->temps));
+
if (ureg_dst_is_undef(t->temps[index]))
t->temps[index] = ureg_DECL_local_temporary(t->ureg);
return t->temps[index];
+ case PROGRAM_ARRAY:
+ array = index >> 16;
+
+ assert(array >= 0);
+ assert(array < (int) Elements(t->arrays));
+
+ if (ureg_dst_is_undef(t->arrays[array]))
+ t->arrays[array] = ureg_DECL_array_temporary(
+ t->ureg, t->array_sizes[array], TRUE);
+
+ return ureg_dst_array_offset(t->arrays[array],
+ (int)(index & 0xFFFF) - 0x8000);
+
case PROGRAM_OUTPUT:
if (t->procType == TGSI_PROCESSOR_VERTEX)
assert(index < VARYING_SLOT_MAX);
@@ -4176,11 +4203,8 @@ src_register(struct st_translate *t,
return ureg_src_undef();
case PROGRAM_TEMPORARY:
- assert(index >= 0);
- assert(index < (int) Elements(t->temps));
- if (ureg_dst_is_undef(t->temps[index]))
- t->temps[index] = ureg_DECL_local_temporary(t->ureg);
- return ureg_src(t->temps[index]);
+ case PROGRAM_ARRAY:
+ return ureg_src(dst_register(t, file, index));
case PROGRAM_ENV_PARAM:
case PROGRAM_LOCAL_PARAM:
@@ -4262,8 +4286,10 @@ translate_dst(struct st_translate *t,
}
}
- if (dst_reg->reladdr != NULL)
+ if (dst_reg->reladdr != NULL) {
+ assert(dst_reg->file != PROGRAM_TEMPORARY);
dst = ureg_dst_indirect(dst, ureg_src(t->address[0]));
+ }
return dst;
}
@@ -4286,26 +4312,8 @@ translate_src(struct st_translate *t, const st_src_reg *src_reg)
src = ureg_negate(src);
if (src_reg->reladdr != NULL) {
- /* Normally ureg_src_indirect() would be used here, but a stupid compiler
- * bug in g++ makes ureg_src_indirect (an inline C function) erroneously
- * set the bit for src.Negate. So we have to do the operation manually
- * here to work around the compiler's problems. */
- /*src = ureg_src_indirect(src, ureg_src(t->address[0]));*/
- struct ureg_src addr = ureg_src(t->address[0]);
- src.Indirect = 1;
- src.IndirectFile = addr.File;
- src.IndirectIndex = addr.Index;
- src.IndirectSwizzle = addr.SwizzleX;
-
- if (src_reg->file != PROGRAM_INPUT &&
- src_reg->file != PROGRAM_OUTPUT) {
- /* If src_reg->index was negative, it was set to zero in
- * src_register(). Reassign it now. But don't do this
- * for input/output regs since they get remapped while
- * const buffers don't.
- */
- src.Index = src_reg->index;
- }
+ assert(src_reg->file != PROGRAM_TEMPORARY);
+ src = ureg_src_indirect(src, ureg_src(t->address[0]));
}
return src;
@@ -4820,16 +4828,9 @@ st_translate_program(
}
}
- if (program->indirect_addr_temps) {
- /* If temps are accessed with indirect addressing, declare temporaries
- * in sequential order. Else, we declare them on demand elsewhere.
- * (Note: the number of temporaries is equal to program->next_temp)
- */
- for (i = 0; i < (unsigned)program->next_temp; i++) {
- /* XXX use TGSI_FILE_TEMPORARY_ARRAY when it's supported by ureg */
- t->temps[i] = ureg_DECL_local_temporary(t->ureg);
- }
- }
+ /* Copy over array sizes
+ */
+ memcpy(t->array_sizes, program->array_sizes, sizeof(unsigned) * program->next_array);
/* Emit constants and uniforms. TGSI uses a single index space for these,
* so we put all the translated regs in t->constants.
@@ -5064,16 +5065,9 @@ get_mesa_program(struct gl_context *ctx,
v->copy_propagate();
while (v->eliminate_dead_code_advanced());
- /* FIXME: These passes to optimize temporary registers don't work when there
- * is indirect addressing of the temporary register space. We need proper
- * array support so that we don't have to give up these passes in every
- * shader that uses arrays.
- */
- if (!v->indirect_addr_temps) {
- v->eliminate_dead_code();
- v->merge_registers();
- v->renumber_registers();
- }
+ v->eliminate_dead_code();
+ v->merge_registers();
+ v->renumber_registers();
/* Write the END instruction. */
v->emit(NULL, TGSI_OPCODE_END);
diff --git a/mesalib/src/mesa/state_tracker/st_program.c b/mesalib/src/mesa/state_tracker/st_program.c
index 6af8df316..7a38da84f 100644
--- a/mesalib/src/mesa/state_tracker/st_program.c
+++ b/mesalib/src/mesa/state_tracker/st_program.c
@@ -177,6 +177,7 @@ void
st_prepare_vertex_program(struct gl_context *ctx,
struct st_vertex_program *stvp)
{
+ struct st_context *st = st_context(ctx);
GLuint attr;
stvp->num_inputs = 0;
@@ -267,7 +268,8 @@ st_prepare_vertex_program(struct gl_context *ctx,
case VARYING_SLOT_TEX5:
case VARYING_SLOT_TEX6:
case VARYING_SLOT_TEX7:
- stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stvp->output_semantic_name[slot] = st->needs_texcoord_semantic ?
+ TGSI_SEMANTIC_TEXCOORD : TGSI_SEMANTIC_GENERIC;
stvp->output_semantic_index[slot] = attr - VARYING_SLOT_TEX0;
break;
@@ -275,10 +277,8 @@ st_prepare_vertex_program(struct gl_context *ctx,
default:
assert(attr < VARYING_SLOT_MAX);
stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stvp->output_semantic_index[slot] = (VARYING_SLOT_VAR0 -
- VARYING_SLOT_TEX0 +
- attr -
- VARYING_SLOT_VAR0);
+ stvp->output_semantic_index[slot] = st->needs_texcoord_semantic ?
+ (attr - VARYING_SLOT_VAR0) : (attr - VARYING_SLOT_TEX0);
break;
}
}
@@ -585,11 +585,18 @@ st_translate_fragment_program(struct st_context *st,
* fragment shader plus fixed-function hardware (such as
* BFC).
*
- * There is no requirement that semantic indexes start at
- * zero or be restricted to a particular range -- nobody
- * should be building tables based on semantic index.
+ * However, some drivers may need us to identify the PNTC and TEXi
+ * varyings if, for example, their capability to replace them with
+ * sprite coordinates is limited.
*/
case VARYING_SLOT_PNTC:
+ if (st->needs_texcoord_semantic) {
+ input_semantic_name[slot] = TGSI_SEMANTIC_PCOORD;
+ input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
+ break;
+ }
+ /* fall through */
case VARYING_SLOT_TEX0:
case VARYING_SLOT_TEX1:
case VARYING_SLOT_TEX2:
@@ -598,13 +605,29 @@ st_translate_fragment_program(struct st_context *st,
case VARYING_SLOT_TEX5:
case VARYING_SLOT_TEX6:
case VARYING_SLOT_TEX7:
+ if (st->needs_texcoord_semantic) {
+ input_semantic_name[slot] = TGSI_SEMANTIC_TEXCOORD;
+ input_semantic_index[slot] = attr - VARYING_SLOT_TEX0;
+ interpMode[slot] =
+ st_translate_interp(stfp->Base.InterpQualifier[attr], FALSE);
+ break;
+ }
+ /* fall through */
case VARYING_SLOT_VAR0:
default:
- /* Actually, let's try and zero-base this just for
- * readability of the generated TGSI.
+ /* Semantic indices should be zero-based because drivers may choose
+ * to assign a fixed slot determined by that index.
+ * This is useful because ARB_separate_shader_objects uses location
+ * qualifiers for linkage, and if the semantic index corresponds to
+ * these locations, linkage passes in the driver become unecessary.
+ *
+ * If needs_texcoord_semantic is true, no semantic indices will be
+ * consumed for the TEXi varyings, and we can base the locations of
+ * the user varyings on VAR0. Otherwise, we use TEX0 as base index.
*/
assert(attr >= VARYING_SLOT_TEX0);
- input_semantic_index[slot] = (attr - VARYING_SLOT_TEX0);
+ input_semantic_index[slot] = st->needs_texcoord_semantic ?
+ (attr - VARYING_SLOT_VAR0) : (attr - VARYING_SLOT_TEX0);
input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
if (attr == VARYING_SLOT_PNTC)
interpMode[slot] = TGSI_INTERPOLATE_LINEAR;