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authormarha <marha@users.sourceforge.net>2010-12-29 12:20:21 +0000
committermarha <marha@users.sourceforge.net>2010-12-29 12:20:21 +0000
commit053f5dfd42ade05252e586a282e34906db10828d (patch)
treede215580ce205409a6d810a005c6c5909f3145d1 /mesalib/src/mesa/drivers/dri/common/drirenderbuffer.c
parent04ceb8c4a0cca3d8682f094d1d6faed8f693afb5 (diff)
parent807c6931fe683fd844ceec1b023232181e6aae03 (diff)
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svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/mesa/drivers/dri/common/drirenderbuffer.c')
-rw-r--r--mesalib/src/mesa/drivers/dri/common/drirenderbuffer.c400
1 files changed, 200 insertions, 200 deletions
diff --git a/mesalib/src/mesa/drivers/dri/common/drirenderbuffer.c b/mesalib/src/mesa/drivers/dri/common/drirenderbuffer.c
index c9ce6e3cb..5e032bd15 100644
--- a/mesalib/src/mesa/drivers/dri/common/drirenderbuffer.c
+++ b/mesalib/src/mesa/drivers/dri/common/drirenderbuffer.c
@@ -1,200 +1,200 @@
-
-#include "main/mtypes.h"
-#include "main/formats.h"
-#include "main/renderbuffer.h"
-#include "main/imports.h"
-#include "drirenderbuffer.h"
-
-
-/**
- * This will get called when a window (gl_framebuffer) is resized (probably
- * via driUpdateFramebufferSize(), below).
- * Just update width, height and internal format fields for now.
- * There's usually no memory allocation above because the present
- * DRI drivers use statically-allocated full-screen buffers. If that's not
- * the case for a DRI driver, a different AllocStorage method should
- * be used.
- */
-static GLboolean
-driRenderbufferStorage(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLenum internalFormat, GLuint width, GLuint height)
-{
- rb->Width = width;
- rb->Height = height;
- rb->InternalFormat = internalFormat;
- return GL_TRUE;
-}
-
-
-static void
-driDeleteRenderbuffer(struct gl_renderbuffer *rb)
-{
- /* don't free rb->Data Chances are it's a memory mapped region for
- * the dri drivers.
- */
- free(rb);
-}
-
-
-/**
- * Allocate a new driRenderbuffer object.
- * Individual drivers are free to implement different versions of
- * this function.
- *
- * At this time, this function can only be used for window-system
- * renderbuffers, not user-created RBOs.
- *
- * \param format Either GL_RGBA, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24,
- * GL_DEPTH_COMPONENT32, or GL_STENCIL_INDEX8_EXT (for now).
- * \param addr address in main memory of the buffer. Probably a memory
- * mapped region.
- * \param cpp chars or bytes per pixel
- * \param offset start of renderbuffer with respect to start of framebuffer
- * \param pitch pixels per row
- */
-driRenderbuffer *
-driNewRenderbuffer(gl_format format, GLvoid *addr,
- GLint cpp, GLint offset, GLint pitch,
- __DRIdrawable *dPriv)
-{
- driRenderbuffer *drb;
-
- assert(cpp > 0);
- assert(pitch > 0);
-
- drb = calloc(1, sizeof(driRenderbuffer));
- if (drb) {
- const GLuint name = 0;
-
- _mesa_init_renderbuffer(&drb->Base, name);
-
- /* Make sure we're using a null-valued GetPointer routine */
- assert(drb->Base.GetPointer(NULL, &drb->Base, 0, 0) == NULL);
-
- switch (format) {
- case MESA_FORMAT_ARGB8888:
- if (cpp == 2) {
- /* override format */
- format = MESA_FORMAT_RGB565;
- }
- drb->Base.DataType = GL_UNSIGNED_BYTE;
- break;
- case MESA_FORMAT_Z16:
- /* Depth */
- /* we always Get/Put 32-bit Z values */
- drb->Base.DataType = GL_UNSIGNED_INT;
- assert(cpp == 2);
- break;
- case MESA_FORMAT_Z32:
- /* Depth */
- /* we always Get/Put 32-bit Z values */
- drb->Base.DataType = GL_UNSIGNED_INT;
- assert(cpp == 4);
- break;
- case MESA_FORMAT_Z24_S8:
- drb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT;
- assert(cpp == 4);
- break;
- case MESA_FORMAT_S8_Z24:
- drb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT;
- assert(cpp == 4);
- break;
- case MESA_FORMAT_S8:
- /* Stencil */
- drb->Base.DataType = GL_UNSIGNED_BYTE;
- break;
- default:
- _mesa_problem(NULL, "Bad format 0x%x in driNewRenderbuffer", format);
- return NULL;
- }
-
- drb->Base.Format = format;
-
- drb->Base.InternalFormat =
- drb->Base._BaseFormat = _mesa_get_format_base_format(format);
-
- drb->Base.AllocStorage = driRenderbufferStorage;
- drb->Base.Delete = driDeleteRenderbuffer;
-
- drb->Base.Data = addr;
-
- /* DRI renderbuffer-specific fields: */
- drb->dPriv = dPriv;
- drb->offset = offset;
- drb->pitch = pitch;
- drb->cpp = cpp;
-
- /* may be changed if page flipping is active: */
- drb->flippedOffset = offset;
- drb->flippedPitch = pitch;
- drb->flippedData = addr;
- }
- return drb;
-}
-
-
-/**
- * Update the front and back renderbuffers' flippedPitch/Offset/Data fields.
- * If stereo, flip both the left and right pairs.
- * This is used when we do double buffering via page flipping.
- * \param fb the framebuffer we're page flipping
- * \param flipped if true, set flipped values, else set non-flipped values
- */
-void
-driFlipRenderbuffers(struct gl_framebuffer *fb, GLboolean flipped)
-{
- const GLuint count = fb->Visual.stereoMode ? 2 : 1;
- GLuint lr; /* left or right */
-
- /* we shouldn't really call this function if single-buffered, but
- * play it safe.
- */
- if (!fb->Visual.doubleBufferMode)
- return;
-
- for (lr = 0; lr < count; lr++) {
- GLuint frontBuf = (lr == 0) ? BUFFER_FRONT_LEFT : BUFFER_FRONT_RIGHT;
- GLuint backBuf = (lr == 0) ? BUFFER_BACK_LEFT : BUFFER_BACK_RIGHT;
- driRenderbuffer *front_drb
- = (driRenderbuffer *) fb->Attachment[frontBuf].Renderbuffer;
- driRenderbuffer *back_drb
- = (driRenderbuffer *) fb->Attachment[backBuf].Renderbuffer;
-
- if (flipped) {
- front_drb->flippedOffset = back_drb->offset;
- front_drb->flippedPitch = back_drb->pitch;
- front_drb->flippedData = back_drb->Base.Data;
- back_drb->flippedOffset = front_drb->offset;
- back_drb->flippedPitch = front_drb->pitch;
- back_drb->flippedData = front_drb->Base.Data;
- }
- else {
- front_drb->flippedOffset = front_drb->offset;
- front_drb->flippedPitch = front_drb->pitch;
- front_drb->flippedData = front_drb->Base.Data;
- back_drb->flippedOffset = back_drb->offset;
- back_drb->flippedPitch = back_drb->pitch;
- back_drb->flippedData = back_drb->Base.Data;
- }
- }
-}
-
-
-/**
- * Check that the gl_framebuffer associated with dPriv is the right size.
- * Resize the gl_framebuffer if needed.
- * It's expected that the dPriv->driverPrivate member points to a
- * gl_framebuffer object.
- */
-void
-driUpdateFramebufferSize(GLcontext *ctx, const __DRIdrawable *dPriv)
-{
- struct gl_framebuffer *fb = (struct gl_framebuffer *) dPriv->driverPrivate;
- if (fb && (dPriv->w != fb->Width || dPriv->h != fb->Height)) {
- ctx->Driver.ResizeBuffers(ctx, fb, dPriv->w, dPriv->h);
- /* if the driver needs the hw lock for ResizeBuffers, the drawable
- might have changed again by now */
- assert(fb->Width == dPriv->w);
- assert(fb->Height == dPriv->h);
- }
-}
+
+#include "main/mtypes.h"
+#include "main/formats.h"
+#include "main/renderbuffer.h"
+#include "main/imports.h"
+#include "drirenderbuffer.h"
+
+
+/**
+ * This will get called when a window (gl_framebuffer) is resized (probably
+ * via driUpdateFramebufferSize(), below).
+ * Just update width, height and internal format fields for now.
+ * There's usually no memory allocation above because the present
+ * DRI drivers use statically-allocated full-screen buffers. If that's not
+ * the case for a DRI driver, a different AllocStorage method should
+ * be used.
+ */
+static GLboolean
+driRenderbufferStorage(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLenum internalFormat, GLuint width, GLuint height)
+{
+ rb->Width = width;
+ rb->Height = height;
+ rb->InternalFormat = internalFormat;
+ return GL_TRUE;
+}
+
+
+static void
+driDeleteRenderbuffer(struct gl_renderbuffer *rb)
+{
+ /* don't free rb->Data Chances are it's a memory mapped region for
+ * the dri drivers.
+ */
+ free(rb);
+}
+
+
+/**
+ * Allocate a new driRenderbuffer object.
+ * Individual drivers are free to implement different versions of
+ * this function.
+ *
+ * At this time, this function can only be used for window-system
+ * renderbuffers, not user-created RBOs.
+ *
+ * \param format Either GL_RGBA, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24,
+ * GL_DEPTH_COMPONENT32, or GL_STENCIL_INDEX8_EXT (for now).
+ * \param addr address in main memory of the buffer. Probably a memory
+ * mapped region.
+ * \param cpp chars or bytes per pixel
+ * \param offset start of renderbuffer with respect to start of framebuffer
+ * \param pitch pixels per row
+ */
+driRenderbuffer *
+driNewRenderbuffer(gl_format format, GLvoid *addr,
+ GLint cpp, GLint offset, GLint pitch,
+ __DRIdrawable *dPriv)
+{
+ driRenderbuffer *drb;
+
+ assert(cpp > 0);
+ assert(pitch > 0);
+
+ drb = calloc(1, sizeof(driRenderbuffer));
+ if (drb) {
+ const GLuint name = 0;
+
+ _mesa_init_renderbuffer(&drb->Base, name);
+
+ /* Make sure we're using a null-valued GetPointer routine */
+ assert(drb->Base.GetPointer(NULL, &drb->Base, 0, 0) == NULL);
+
+ switch (format) {
+ case MESA_FORMAT_ARGB8888:
+ if (cpp == 2) {
+ /* override format */
+ format = MESA_FORMAT_RGB565;
+ }
+ drb->Base.DataType = GL_UNSIGNED_BYTE;
+ break;
+ case MESA_FORMAT_Z16:
+ /* Depth */
+ /* we always Get/Put 32-bit Z values */
+ drb->Base.DataType = GL_UNSIGNED_INT;
+ assert(cpp == 2);
+ break;
+ case MESA_FORMAT_Z32:
+ /* Depth */
+ /* we always Get/Put 32-bit Z values */
+ drb->Base.DataType = GL_UNSIGNED_INT;
+ assert(cpp == 4);
+ break;
+ case MESA_FORMAT_Z24_S8:
+ drb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT;
+ assert(cpp == 4);
+ break;
+ case MESA_FORMAT_S8_Z24:
+ drb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT;
+ assert(cpp == 4);
+ break;
+ case MESA_FORMAT_S8:
+ /* Stencil */
+ drb->Base.DataType = GL_UNSIGNED_BYTE;
+ break;
+ default:
+ _mesa_problem(NULL, "Bad format 0x%x in driNewRenderbuffer", format);
+ return NULL;
+ }
+
+ drb->Base.Format = format;
+
+ drb->Base.InternalFormat =
+ drb->Base._BaseFormat = _mesa_get_format_base_format(format);
+
+ drb->Base.AllocStorage = driRenderbufferStorage;
+ drb->Base.Delete = driDeleteRenderbuffer;
+
+ drb->Base.Data = addr;
+
+ /* DRI renderbuffer-specific fields: */
+ drb->dPriv = dPriv;
+ drb->offset = offset;
+ drb->pitch = pitch;
+ drb->cpp = cpp;
+
+ /* may be changed if page flipping is active: */
+ drb->flippedOffset = offset;
+ drb->flippedPitch = pitch;
+ drb->flippedData = addr;
+ }
+ return drb;
+}
+
+
+/**
+ * Update the front and back renderbuffers' flippedPitch/Offset/Data fields.
+ * If stereo, flip both the left and right pairs.
+ * This is used when we do double buffering via page flipping.
+ * \param fb the framebuffer we're page flipping
+ * \param flipped if true, set flipped values, else set non-flipped values
+ */
+void
+driFlipRenderbuffers(struct gl_framebuffer *fb, GLboolean flipped)
+{
+ const GLuint count = fb->Visual.stereoMode ? 2 : 1;
+ GLuint lr; /* left or right */
+
+ /* we shouldn't really call this function if single-buffered, but
+ * play it safe.
+ */
+ if (!fb->Visual.doubleBufferMode)
+ return;
+
+ for (lr = 0; lr < count; lr++) {
+ GLuint frontBuf = (lr == 0) ? BUFFER_FRONT_LEFT : BUFFER_FRONT_RIGHT;
+ GLuint backBuf = (lr == 0) ? BUFFER_BACK_LEFT : BUFFER_BACK_RIGHT;
+ driRenderbuffer *front_drb
+ = (driRenderbuffer *) fb->Attachment[frontBuf].Renderbuffer;
+ driRenderbuffer *back_drb
+ = (driRenderbuffer *) fb->Attachment[backBuf].Renderbuffer;
+
+ if (flipped) {
+ front_drb->flippedOffset = back_drb->offset;
+ front_drb->flippedPitch = back_drb->pitch;
+ front_drb->flippedData = back_drb->Base.Data;
+ back_drb->flippedOffset = front_drb->offset;
+ back_drb->flippedPitch = front_drb->pitch;
+ back_drb->flippedData = front_drb->Base.Data;
+ }
+ else {
+ front_drb->flippedOffset = front_drb->offset;
+ front_drb->flippedPitch = front_drb->pitch;
+ front_drb->flippedData = front_drb->Base.Data;
+ back_drb->flippedOffset = back_drb->offset;
+ back_drb->flippedPitch = back_drb->pitch;
+ back_drb->flippedData = back_drb->Base.Data;
+ }
+ }
+}
+
+
+/**
+ * Check that the gl_framebuffer associated with dPriv is the right size.
+ * Resize the gl_framebuffer if needed.
+ * It's expected that the dPriv->driverPrivate member points to a
+ * gl_framebuffer object.
+ */
+void
+driUpdateFramebufferSize(struct gl_context *ctx, const __DRIdrawable *dPriv)
+{
+ struct gl_framebuffer *fb = (struct gl_framebuffer *) dPriv->driverPrivate;
+ if (fb && (dPriv->w != fb->Width || dPriv->h != fb->Height)) {
+ ctx->Driver.ResizeBuffers(ctx, fb, dPriv->w, dPriv->h);
+ /* if the driver needs the hw lock for ResizeBuffers, the drawable
+ might have changed again by now */
+ assert(fb->Width == dPriv->w);
+ assert(fb->Height == dPriv->h);
+ }
+}