diff options
Diffstat (limited to 'mesalib/src/mesa/main/texrender.c')
| -rw-r--r-- | mesalib/src/mesa/main/texrender.c | 654 |
1 files changed, 0 insertions, 654 deletions
diff --git a/mesalib/src/mesa/main/texrender.c b/mesalib/src/mesa/main/texrender.c deleted file mode 100644 index a7641a5f9..000000000 --- a/mesalib/src/mesa/main/texrender.c +++ /dev/null @@ -1,654 +0,0 @@ - -#include "context.h" -#include "colormac.h" -#include "fbobject.h" -#include "macros.h" -#include "texfetch.h" -#include "teximage.h" -#include "texrender.h" -#include "renderbuffer.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 -_mesa_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 -_mesa_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; -} |