aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mesa/swrast
diff options
context:
space:
mode:
Diffstat (limited to 'mesalib/src/mesa/swrast')
-rw-r--r--mesalib/src/mesa/swrast/s_texrender.c654
-rw-r--r--mesalib/src/mesa/swrast/swrast.h474
2 files changed, 896 insertions, 232 deletions
diff --git a/mesalib/src/mesa/swrast/s_texrender.c b/mesalib/src/mesa/swrast/s_texrender.c
new file mode 100644
index 000000000..b7239a71d
--- /dev/null
+++ b/mesalib/src/mesa/swrast/s_texrender.c
@@ -0,0 +1,654 @@
+
+#include "main/context.h"
+#include "main/colormac.h"
+#include "main/fbobject.h"
+#include "main/macros.h"
+#include "main/texfetch.h"
+#include "main/teximage.h"
+#include "main/renderbuffer.h"
+#include "swrast/swrast.h"
+
+
+/*
+ * Render-to-texture code for GL_EXT_framebuffer_object
+ */
+
+
+/**
+ * Derived from gl_renderbuffer class
+ */
+struct texture_renderbuffer
+{
+ struct gl_renderbuffer Base; /**< Base class object */
+ struct gl_texture_image *TexImage;
+ StoreTexelFunc Store;
+ FetchTexelFuncF Fetchf;
+ GLint Yoffset; /**< Layer for 1D array textures. */
+ GLint Zoffset; /**< Layer for 2D array textures, or slice
+ * for 3D textures
+ */
+};
+
+
+/**
+ * Get row of values from the renderbuffer that wraps a texture image.
+ */
+static void
+texture_get_row(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, void *values)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ ASSERT(trb->TexImage->Width == rb->Width);
+ ASSERT(trb->TexImage->Height == rb->Height);
+
+ y += trb->Yoffset;
+
+ if (rb->DataType == CHAN_TYPE) {
+ GLchan *rgbaOut = (GLchan *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat rgba[4];
+ trb->Fetchf(trb->TexImage, x + i, y, z, rgba);
+ UNCLAMPED_FLOAT_TO_RGBA_CHAN(rgbaOut + 4 * i, rgba);
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ GLushort *zValues = (GLushort *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x + i, y, z, &flt);
+ zValues[i] = (GLushort) (flt * 0xffff);
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ GLuint *zValues = (GLuint *) values;
+ /*
+ const GLdouble scale = (GLdouble) 0xffffffff;
+ */
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x + i, y, z, &flt);
+#if 0
+ /* this should work, but doesn't (overflow due to low precision) */
+ zValues[i] = (GLuint) (flt * scale);
+#else
+ /* temporary hack */
+ zValues[i] = ((GLuint) (flt * 0xffffff)) << 8;
+#endif
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ GLuint *zValues = (GLuint *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x + i, y, z, &flt);
+ zValues[i] = ((GLuint) (flt * 0xffffff)) << 8;
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_8_24_REV_MESA) {
+ GLuint *zValues = (GLuint *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x + i, y, z, &flt);
+ zValues[i] = (GLuint) (flt * 0xffffff);
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_get_row");
+ }
+}
+
+
+static void
+texture_get_values(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ const GLint x[], const GLint y[], void *values)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ if (rb->DataType == CHAN_TYPE) {
+ GLchan *rgbaOut = (GLchan *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat rgba[4];
+ trb->Fetchf(trb->TexImage, x[i], y[i] + trb->Yoffset,
+ z, rgba);
+ UNCLAMPED_FLOAT_TO_RGBA_CHAN(rgbaOut + 4 * i, rgba);
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ GLushort *zValues = (GLushort *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x[i], y[i] + trb->Yoffset,
+ z, &flt);
+ zValues[i] = (GLushort) (flt * 0xffff);
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ GLuint *zValues = (GLuint *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x[i], y[i] + trb->Yoffset,
+ z, &flt);
+#if 0
+ zValues[i] = (GLuint) (flt * 0xffffffff);
+#else
+ zValues[i] = ((GLuint) (flt * 0xffffff)) << 8;
+#endif
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ GLuint *zValues = (GLuint *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x[i], y[i] + trb->Yoffset,
+ z, &flt);
+ zValues[i] = ((GLuint) (flt * 0xffffff)) << 8;
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_8_24_REV_MESA) {
+ GLuint *zValues = (GLuint *) values;
+ for (i = 0; i < count; i++) {
+ GLfloat flt;
+ trb->Fetchf(trb->TexImage, x[i], y[i] + trb->Yoffset,
+ z, &flt);
+ zValues[i] = (GLuint) (flt * 0xffffff);
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_get_values");
+ }
+}
+
+
+/**
+ * Put row of values into a renderbuffer that wraps a texture image.
+ */
+static void
+texture_put_row(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, const void *values, const GLubyte *mask)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ y += trb->Yoffset;
+
+ if (rb->DataType == CHAN_TYPE) {
+ const GLchan *rgba = (const GLchan *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, rgba);
+ }
+ rgba += 4;
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ const GLushort *zValues = (const GLushort *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ GLfloat flt = (GLfloat) ((zValues[i] >> 8) * (1.0 / 0xffffff));
+ trb->Store(trb->TexImage, x + i, y, z, &flt);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_8_24_REV_MESA) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ GLfloat flt = (GLfloat) ((zValues[i] & 0xffffff) * (1.0 / 0xffffff));
+ trb->Store(trb->TexImage, x + i, y, z, &flt);
+ }
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_put_row");
+ }
+}
+
+/**
+ * Put row of RGB values into a renderbuffer that wraps a texture image.
+ */
+static void
+texture_put_row_rgb(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, const void *values, const GLubyte *mask)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ y += trb->Yoffset;
+
+ if (rb->DataType == CHAN_TYPE) {
+ const GLchan *rgb = (const GLchan *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, rgb);
+ }
+ rgb += 3;
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ const GLushort *zValues = (const GLushort *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ GLfloat flt = (GLfloat) ((zValues[i] >> 8) * (1.0 / 0xffffff));
+ trb->Store(trb->TexImage, x + i, y, z, &flt);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_8_24_REV_MESA) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ GLfloat flt = (GLfloat) ((zValues[i] & 0xffffff) * (1.0 / 0xffffff));
+ trb->Store(trb->TexImage, x + i, y, z, &flt);
+ }
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_put_row");
+ }
+}
+
+
+static void
+texture_put_mono_row(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, const void *value, const GLubyte *mask)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ y += trb->Yoffset;
+
+ if (rb->DataType == CHAN_TYPE) {
+ const GLchan *rgba = (const GLchan *) value;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, rgba);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ const GLushort zValue = *((const GLushort *) value);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, &zValue);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ const GLuint zValue = *((const GLuint *) value);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, &zValue);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ const GLuint zValue = *((const GLuint *) value);
+ const GLfloat flt = (GLfloat) ((zValue >> 8) * (1.0 / 0xffffff));
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, &flt);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_8_24_REV_MESA) {
+ const GLuint zValue = *((const GLuint *) value);
+ const GLfloat flt = (GLfloat) ((zValue & 0xffffff) * (1.0 / 0xffffff));
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, &flt);
+ }
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_put_mono_row");
+ }
+}
+
+
+static void
+texture_put_values(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ const GLint x[], const GLint y[], const void *values,
+ const GLubyte *mask)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ if (rb->DataType == CHAN_TYPE) {
+ const GLchan *rgba = (const GLchan *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, rgba);
+ }
+ rgba += 4;
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ const GLushort *zValues = (const GLushort *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ GLfloat flt = (GLfloat) ((zValues[i] >> 8) * (1.0 / 0xffffff));
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &flt);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_8_24_REV_MESA) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ GLfloat flt = (GLfloat) ((zValues[i] & 0xffffff) * (1.0 / 0xffffff));
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &flt);
+ }
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_put_values");
+ }
+}
+
+
+static void
+texture_put_mono_values(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ const void *value, const GLubyte *mask)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ if (rb->DataType == CHAN_TYPE) {
+ const GLchan *rgba = (const GLchan *) value;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, rgba);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ const GLuint zValue = *((const GLuint *) value);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &zValue);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ const GLushort zValue = *((const GLushort *) value);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &zValue);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ const GLuint zValue = *((const GLuint *) value);
+ const GLfloat flt = (GLfloat) ((zValue >> 8) * (1.0 / 0xffffff));
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &flt);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_8_24_REV_MESA) {
+ const GLuint zValue = *((const GLuint *) value);
+ const GLfloat flt = (GLfloat) ((zValue & 0xffffff) * (1.0 / 0xffffff));
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &flt);
+ }
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_put_mono_values");
+ }
+}
+
+
+static void
+store_nop(struct gl_texture_image *texImage,
+ GLint col, GLint row, GLint img,
+ const void *texel)
+{
+}
+
+
+static void
+delete_texture_wrapper(struct gl_renderbuffer *rb)
+{
+ ASSERT(rb->RefCount == 0);
+ free(rb);
+}
+
+
+/**
+ * This function creates a renderbuffer object which wraps a texture image.
+ * The new renderbuffer is plugged into the given attachment point.
+ * This allows rendering into the texture as if it were a renderbuffer.
+ */
+static void
+wrap_texture(struct gl_context *ctx, struct gl_renderbuffer_attachment *att)
+{
+ struct texture_renderbuffer *trb;
+ const GLuint name = 0;
+
+ ASSERT(att->Type == GL_TEXTURE);
+ ASSERT(att->Renderbuffer == NULL);
+
+ trb = CALLOC_STRUCT(texture_renderbuffer);
+ if (!trb) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "wrap_texture");
+ return;
+ }
+
+ /* init base gl_renderbuffer fields */
+ _mesa_init_renderbuffer(&trb->Base, name);
+ /* plug in our texture_renderbuffer-specific functions */
+ trb->Base.Delete = delete_texture_wrapper;
+ trb->Base.AllocStorage = NULL; /* illegal! */
+ trb->Base.GetRow = texture_get_row;
+ trb->Base.GetValues = texture_get_values;
+ trb->Base.PutRow = texture_put_row;
+ trb->Base.PutRowRGB = texture_put_row_rgb;
+ trb->Base.PutMonoRow = texture_put_mono_row;
+ trb->Base.PutValues = texture_put_values;
+ trb->Base.PutMonoValues = texture_put_mono_values;
+
+ /* update attachment point */
+ _mesa_reference_renderbuffer(&att->Renderbuffer, &(trb->Base));
+}
+
+/**
+ * Update the renderbuffer wrapper for rendering to a texture.
+ * For example, update the width, height of the RB based on the texture size,
+ * update the internal format info, etc.
+ */
+static void
+update_wrapper(struct gl_context *ctx, struct gl_renderbuffer_attachment *att)
+{
+ struct texture_renderbuffer *trb
+ = (struct texture_renderbuffer *) att->Renderbuffer;
+
+ (void) ctx;
+ ASSERT(trb);
+
+ trb->TexImage = _mesa_get_attachment_teximage(att);
+ ASSERT(trb->TexImage);
+
+ trb->Store = _mesa_get_texel_store_func(trb->TexImage->TexFormat);
+ if (!trb->Store) {
+ /* we'll never draw into some textures (compressed formats) */
+ trb->Store = store_nop;
+ }
+
+ trb->Fetchf = trb->TexImage->FetchTexelf;
+
+ if (att->Texture->Target == GL_TEXTURE_1D_ARRAY_EXT) {
+ trb->Yoffset = att->Zoffset;
+ trb->Zoffset = 0;
+ }
+ else {
+ trb->Yoffset = 0;
+ trb->Zoffset = att->Zoffset;
+ }
+
+ trb->Base.Width = trb->TexImage->Width;
+ trb->Base.Height = trb->TexImage->Height;
+ trb->Base.InternalFormat = trb->TexImage->InternalFormat;
+ trb->Base.Format = trb->TexImage->TexFormat;
+
+ /* XXX may need more special cases here */
+ switch (trb->TexImage->TexFormat) {
+ case MESA_FORMAT_Z24_S8:
+ trb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT;
+ trb->Base._BaseFormat = GL_DEPTH_STENCIL;
+ break;
+ case MESA_FORMAT_S8_Z24:
+ trb->Base.DataType = GL_UNSIGNED_INT_8_24_REV_MESA;
+ trb->Base._BaseFormat = GL_DEPTH_STENCIL;
+ break;
+ case MESA_FORMAT_Z24_X8:
+ trb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT;
+ trb->Base._BaseFormat = GL_DEPTH_COMPONENT;
+ break;
+ case MESA_FORMAT_X8_Z24:
+ trb->Base.DataType = GL_UNSIGNED_INT_8_24_REV_MESA;
+ trb->Base._BaseFormat = GL_DEPTH_COMPONENT;
+ break;
+ case MESA_FORMAT_Z16:
+ trb->Base.DataType = GL_UNSIGNED_SHORT;
+ trb->Base._BaseFormat = GL_DEPTH_COMPONENT;
+ break;
+ case MESA_FORMAT_Z32:
+ trb->Base.DataType = GL_UNSIGNED_INT;
+ trb->Base._BaseFormat = GL_DEPTH_COMPONENT;
+ break;
+ /* SRGB formats pre EXT_framebuffer_sRGB don't do sRGB translations on FBO readback */
+ case MESA_FORMAT_SRGB8:
+ trb->Fetchf = _mesa_get_texel_fetch_func(MESA_FORMAT_RGB888, _mesa_get_texture_dimensions(att->Texture->Target));
+ trb->Base.DataType = CHAN_TYPE;
+ trb->Base._BaseFormat = GL_RGBA;
+ break;
+ case MESA_FORMAT_SRGBA8:
+ trb->Fetchf = _mesa_get_texel_fetch_func(MESA_FORMAT_RGBA8888, _mesa_get_texture_dimensions(att->Texture->Target));
+ trb->Base.DataType = CHAN_TYPE;
+ trb->Base._BaseFormat = GL_RGBA;
+ break;
+ case MESA_FORMAT_SARGB8:
+ trb->Fetchf = _mesa_get_texel_fetch_func(MESA_FORMAT_ARGB8888, _mesa_get_texture_dimensions(att->Texture->Target));
+ trb->Base.DataType = CHAN_TYPE;
+ trb->Base._BaseFormat = GL_RGBA;
+ break;
+ default:
+ trb->Base.DataType = CHAN_TYPE;
+ trb->Base._BaseFormat = GL_RGBA;
+ }
+ trb->Base.Data = trb->TexImage->Data;
+}
+
+
+
+/**
+ * Called when rendering to a texture image begins, or when changing
+ * the dest mipmap level, cube face, etc.
+ * This is a fallback routine for software render-to-texture.
+ *
+ * Called via the glRenderbufferTexture1D/2D/3D() functions
+ * and elsewhere (such as glTexImage2D).
+ *
+ * The image we're rendering into is
+ * att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+ * It'll never be NULL.
+ *
+ * \param fb the framebuffer object the texture is being bound to
+ * \param att the fb attachment point of the texture
+ *
+ * \sa _mesa_framebuffer_renderbuffer
+ */
+void
+_swrast_render_texture(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer_attachment *att)
+{
+ (void) fb;
+
+ if (!att->Renderbuffer) {
+ wrap_texture(ctx, att);
+ }
+ update_wrapper(ctx, att);
+}
+
+
+void
+_swrast_finish_render_texture(struct gl_context *ctx,
+ struct gl_renderbuffer_attachment *att)
+{
+ /* do nothing */
+ /* The renderbuffer texture wrapper will get deleted by the
+ * normal mechanism for deleting renderbuffers.
+ */
+ (void) ctx;
+ (void) att;
+}
diff --git a/mesalib/src/mesa/swrast/swrast.h b/mesalib/src/mesa/swrast/swrast.h
index 2db536c7b..27b74c324 100644
--- a/mesalib/src/mesa/swrast/swrast.h
+++ b/mesalib/src/mesa/swrast/swrast.h
@@ -1,232 +1,242 @@
-/*
- * Mesa 3-D graphics library
- * Version: 6.5
- *
- * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-/**
- * \file swrast/swrast.h
- * \brief Public interface to the software rasterization functions.
- * \author Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#ifndef SWRAST_H
-#define SWRAST_H
-
-#include "main/mtypes.h"
-
-/**
- * \struct SWvertex
- * \brief Data-structure to handle vertices in the software rasterizer.
- *
- * The software rasterizer now uses this format for vertices. Thus a
- * 'RasterSetup' stage or other translation is required between the
- * tnl module and the swrast rasterization functions. This serves to
- * isolate the swrast module from the internals of the tnl module, and
- * improve its usefulness as a fallback mechanism for hardware
- * drivers.
- *
- * wpos = attr[FRAG_ATTRIB_WPOS] and MUST BE THE FIRST values in the
- * vertex because of the tnl clipping code.
-
- * wpos[0] and [1] are the screen-coords of SWvertex.
- * wpos[2] is the z-buffer coord (if 16-bit Z buffer, in range [0,65535]).
- * wpos[3] is 1/w where w is the clip-space W coord. This is the value
- * that clip{XYZ} were multiplied by to get ndc{XYZ}.
- *
- * Full software drivers:
- * - Register the rastersetup and triangle functions from
- * utils/software_helper.
- * - On statechange, update the rasterization pointers in that module.
- *
- * Rasterization hardware drivers:
- * - Keep native rastersetup.
- * - Implement native twoside,offset and unfilled triangle setup.
- * - Implement a translator from native vertices to swrast vertices.
- * - On partial fallback (mix of accelerated and unaccelerated
- * prims), call a pass-through function which translates native
- * vertices to SWvertices and calls the appropriate swrast function.
- * - On total fallback (vertex format insufficient for state or all
- * primitives unaccelerated), hook in swrast_setup instead.
- */
-typedef struct {
- GLfloat attrib[FRAG_ATTRIB_MAX][4];
- GLchan color[4]; /** integer color */
- GLfloat pointSize;
-} SWvertex;
-
-
-#define FRAG_ATTRIB_CI FRAG_ATTRIB_COL0
-
-
-struct swrast_device_driver;
-
-
-/* These are the public-access functions exported from swrast.
- */
-
-extern GLboolean
-_swrast_CreateContext( struct gl_context *ctx );
-
-extern void
-_swrast_DestroyContext( struct gl_context *ctx );
-
-/* Get a (non-const) reference to the device driver struct for swrast.
- */
-extern struct swrast_device_driver *
-_swrast_GetDeviceDriverReference( struct gl_context *ctx );
-
-extern void
-_swrast_Bitmap( struct gl_context *ctx,
- GLint px, GLint py,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap );
-
-extern void
-_swrast_CopyPixels( struct gl_context *ctx,
- GLint srcx, GLint srcy,
- GLint destx, GLint desty,
- GLsizei width, GLsizei height,
- GLenum type );
-
-extern void
-_swrast_DrawPixels( struct gl_context *ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels );
-
-extern void
-_swrast_ReadPixels( struct gl_context *ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- GLvoid *pixels );
-
-extern void
-_swrast_BlitFramebuffer(struct gl_context *ctx,
- GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
- GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
- GLbitfield mask, GLenum filter);
-
-extern void
-_swrast_Clear(struct gl_context *ctx, GLbitfield buffers);
-
-extern void
-_swrast_Accum(struct gl_context *ctx, GLenum op, GLfloat value);
-
-
-
-/* Reset the stipple counter
- */
-extern void
-_swrast_ResetLineStipple( struct gl_context *ctx );
-
-/**
- * Indicates front/back facing for subsequent points/lines when drawing
- * unfilled polygons. Needed for two-side stencil.
- */
-extern void
-_swrast_SetFacing(struct gl_context *ctx, GLuint facing);
-
-/* These will always render the correct point/line/triangle for the
- * current state.
- *
- * For flatshaded primitives, the provoking vertex is the final one.
- */
-extern void
-_swrast_Point( struct gl_context *ctx, const SWvertex *v );
-
-extern void
-_swrast_Line( struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1 );
-
-extern void
-_swrast_Triangle( struct gl_context *ctx, const SWvertex *v0,
- const SWvertex *v1, const SWvertex *v2 );
-
-extern void
-_swrast_Quad( struct gl_context *ctx,
- const SWvertex *v0, const SWvertex *v1,
- const SWvertex *v2, const SWvertex *v3);
-
-extern void
-_swrast_flush( struct gl_context *ctx );
-
-extern void
-_swrast_render_primitive( struct gl_context *ctx, GLenum mode );
-
-extern void
-_swrast_render_start( struct gl_context *ctx );
-
-extern void
-_swrast_render_finish( struct gl_context *ctx );
-
-/* Tell the software rasterizer about core state changes.
- */
-extern void
-_swrast_InvalidateState( struct gl_context *ctx, GLbitfield new_state );
-
-/* Configure software rasterizer to match hardware rasterizer characteristics:
- */
-extern void
-_swrast_allow_vertex_fog( struct gl_context *ctx, GLboolean value );
-
-extern void
-_swrast_allow_pixel_fog( struct gl_context *ctx, GLboolean value );
-
-/* Debug:
- */
-extern void
-_swrast_print_vertex( struct gl_context *ctx, const SWvertex *v );
-
-
-
-extern void
-_swrast_eject_texture_images(struct gl_context *ctx);
-
-
-
-/**
- * The driver interface for the software rasterizer.
- * XXX this may go away.
- * We may move these functions to ctx->Driver.RenderStart, RenderEnd.
- */
-struct swrast_device_driver {
- /*
- * These are called before and after accessing renderbuffers during
- * software rasterization.
- *
- * These are a suitable place for grabbing/releasing hardware locks.
- *
- * NOTE: The swrast triangle/line/point routines *DO NOT* call
- * these functions. Locking in that case must be organized by the
- * driver by other mechanisms.
- */
- void (*SpanRenderStart)(struct gl_context *ctx);
- void (*SpanRenderFinish)(struct gl_context *ctx);
-};
-
-
-
-#endif
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+/**
+ * \file swrast/swrast.h
+ * \brief Public interface to the software rasterization functions.
+ * \author Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef SWRAST_H
+#define SWRAST_H
+
+#include "main/mtypes.h"
+
+/**
+ * \struct SWvertex
+ * \brief Data-structure to handle vertices in the software rasterizer.
+ *
+ * The software rasterizer now uses this format for vertices. Thus a
+ * 'RasterSetup' stage or other translation is required between the
+ * tnl module and the swrast rasterization functions. This serves to
+ * isolate the swrast module from the internals of the tnl module, and
+ * improve its usefulness as a fallback mechanism for hardware
+ * drivers.
+ *
+ * wpos = attr[FRAG_ATTRIB_WPOS] and MUST BE THE FIRST values in the
+ * vertex because of the tnl clipping code.
+
+ * wpos[0] and [1] are the screen-coords of SWvertex.
+ * wpos[2] is the z-buffer coord (if 16-bit Z buffer, in range [0,65535]).
+ * wpos[3] is 1/w where w is the clip-space W coord. This is the value
+ * that clip{XYZ} were multiplied by to get ndc{XYZ}.
+ *
+ * Full software drivers:
+ * - Register the rastersetup and triangle functions from
+ * utils/software_helper.
+ * - On statechange, update the rasterization pointers in that module.
+ *
+ * Rasterization hardware drivers:
+ * - Keep native rastersetup.
+ * - Implement native twoside,offset and unfilled triangle setup.
+ * - Implement a translator from native vertices to swrast vertices.
+ * - On partial fallback (mix of accelerated and unaccelerated
+ * prims), call a pass-through function which translates native
+ * vertices to SWvertices and calls the appropriate swrast function.
+ * - On total fallback (vertex format insufficient for state or all
+ * primitives unaccelerated), hook in swrast_setup instead.
+ */
+typedef struct {
+ GLfloat attrib[FRAG_ATTRIB_MAX][4];
+ GLchan color[4]; /** integer color */
+ GLfloat pointSize;
+} SWvertex;
+
+
+#define FRAG_ATTRIB_CI FRAG_ATTRIB_COL0
+
+
+struct swrast_device_driver;
+
+
+/* These are the public-access functions exported from swrast.
+ */
+
+extern GLboolean
+_swrast_CreateContext( struct gl_context *ctx );
+
+extern void
+_swrast_DestroyContext( struct gl_context *ctx );
+
+/* Get a (non-const) reference to the device driver struct for swrast.
+ */
+extern struct swrast_device_driver *
+_swrast_GetDeviceDriverReference( struct gl_context *ctx );
+
+extern void
+_swrast_Bitmap( struct gl_context *ctx,
+ GLint px, GLint py,
+ GLsizei width, GLsizei height,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLubyte *bitmap );
+
+extern void
+_swrast_CopyPixels( struct gl_context *ctx,
+ GLint srcx, GLint srcy,
+ GLint destx, GLint desty,
+ GLsizei width, GLsizei height,
+ GLenum type );
+
+extern void
+_swrast_DrawPixels( struct gl_context *ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels );
+
+extern void
+_swrast_ReadPixels( struct gl_context *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ GLvoid *pixels );
+
+extern void
+_swrast_BlitFramebuffer(struct gl_context *ctx,
+ GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+ GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+ GLbitfield mask, GLenum filter);
+
+extern void
+_swrast_Clear(struct gl_context *ctx, GLbitfield buffers);
+
+extern void
+_swrast_Accum(struct gl_context *ctx, GLenum op, GLfloat value);
+
+
+
+/* Reset the stipple counter
+ */
+extern void
+_swrast_ResetLineStipple( struct gl_context *ctx );
+
+/**
+ * Indicates front/back facing for subsequent points/lines when drawing
+ * unfilled polygons. Needed for two-side stencil.
+ */
+extern void
+_swrast_SetFacing(struct gl_context *ctx, GLuint facing);
+
+/* These will always render the correct point/line/triangle for the
+ * current state.
+ *
+ * For flatshaded primitives, the provoking vertex is the final one.
+ */
+extern void
+_swrast_Point( struct gl_context *ctx, const SWvertex *v );
+
+extern void
+_swrast_Line( struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1 );
+
+extern void
+_swrast_Triangle( struct gl_context *ctx, const SWvertex *v0,
+ const SWvertex *v1, const SWvertex *v2 );
+
+extern void
+_swrast_Quad( struct gl_context *ctx,
+ const SWvertex *v0, const SWvertex *v1,
+ const SWvertex *v2, const SWvertex *v3);
+
+extern void
+_swrast_flush( struct gl_context *ctx );
+
+extern void
+_swrast_render_primitive( struct gl_context *ctx, GLenum mode );
+
+extern void
+_swrast_render_start( struct gl_context *ctx );
+
+extern void
+_swrast_render_finish( struct gl_context *ctx );
+
+/* Tell the software rasterizer about core state changes.
+ */
+extern void
+_swrast_InvalidateState( struct gl_context *ctx, GLbitfield new_state );
+
+/* Configure software rasterizer to match hardware rasterizer characteristics:
+ */
+extern void
+_swrast_allow_vertex_fog( struct gl_context *ctx, GLboolean value );
+
+extern void
+_swrast_allow_pixel_fog( struct gl_context *ctx, GLboolean value );
+
+/* Debug:
+ */
+extern void
+_swrast_print_vertex( struct gl_context *ctx, const SWvertex *v );
+
+
+
+extern void
+_swrast_eject_texture_images(struct gl_context *ctx);
+
+
+extern void
+_swrast_render_texture(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer_attachment *att);
+
+extern void
+_swrast_finish_render_texture(struct gl_context *ctx,
+ struct gl_renderbuffer_attachment *att);
+
+
+
+/**
+ * The driver interface for the software rasterizer.
+ * XXX this may go away.
+ * We may move these functions to ctx->Driver.RenderStart, RenderEnd.
+ */
+struct swrast_device_driver {
+ /*
+ * These are called before and after accessing renderbuffers during
+ * software rasterization.
+ *
+ * These are a suitable place for grabbing/releasing hardware locks.
+ *
+ * NOTE: The swrast triangle/line/point routines *DO NOT* call
+ * these functions. Locking in that case must be organized by the
+ * driver by other mechanisms.
+ */
+ void (*SpanRenderStart)(struct gl_context *ctx);
+ void (*SpanRenderFinish)(struct gl_context *ctx);
+};
+
+
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 10:40:53 +0000