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Diffstat (limited to 'src/mesa/drivers/common/meta.c')
-rw-r--r--src/mesa/drivers/common/meta.c285
1 files changed, 236 insertions, 49 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 6b35dbb5ad..22cd6de564 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -56,6 +56,7 @@
#include "main/stencil.h"
#include "main/texobj.h"
#include "main/texenv.h"
+#include "main/texformat.h"
#include "main/teximage.h"
#include "main/texparam.h"
#include "main/texstate.h"
@@ -303,40 +304,10 @@ _mesa_meta_init(GLcontext *ctx)
void
_mesa_meta_free(GLcontext *ctx)
{
- struct gl_meta_state *meta = ctx->Meta;
-
- if (_mesa_get_current_context()) {
- /* if there's no current context, these textures, buffers, etc should
- * still get freed by _mesa_free_context_data().
- */
-
- /* the temporary texture */
- _mesa_DeleteTextures(1, &meta->TempTex.TexObj);
-
- /* glBlitFramebuffer */
- _mesa_DeleteBuffersARB(1, & meta->Blit.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->Blit.ArrayObj);
- _mesa_DeletePrograms(1, &meta->Blit.DepthFP);
-
- /* glClear */
- _mesa_DeleteBuffersARB(1, & meta->Clear.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->Clear.ArrayObj);
-
- /* glCopyPixels */
- _mesa_DeleteBuffersARB(1, & meta->CopyPix.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->CopyPix.ArrayObj);
-
- /* glDrawPixels */
- _mesa_DeleteVertexArraysAPPLE(1, &meta->DrawPix.ArrayObj);
- _mesa_DeletePrograms(1, &meta->DrawPix.DepthFP);
- _mesa_DeletePrograms(1, &meta->DrawPix.StencilFP);
-
- /* glBitmap */
- _mesa_DeleteBuffersARB(1, & meta->Bitmap.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->Bitmap.ArrayObj);
- _mesa_DeleteTextures(1, &meta->Bitmap.Tex.TexObj);
- }
-
+ /* Note: Any textures, VBOs, etc, that we allocate should get
+ * freed by the normal context destruction code. But this would be
+ * the place to free other meta data someday.
+ */
_mesa_free(ctx->Meta);
ctx->Meta = NULL;
}
@@ -975,7 +946,8 @@ setup_copypix_texture(struct temp_texture *tex,
* Setup/load texture for glDrawPixels.
*/
static void
-setup_drawpix_texture(struct temp_texture *tex,
+setup_drawpix_texture(GLcontext *ctx,
+ struct temp_texture *tex,
GLboolean newTex,
GLenum texIntFormat,
GLsizei width, GLsizei height,
@@ -996,9 +968,17 @@ setup_drawpix_texture(struct temp_texture *tex,
tex->Width, tex->Height, 0, format, type, pixels);
}
else {
+ struct gl_buffer_object *save_unpack_obj = NULL;
+
+ _mesa_reference_buffer_object(ctx, &save_unpack_obj,
+ ctx->Unpack.BufferObj);
+ _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
/* create empty texture */
_mesa_TexImage2D(tex->Target, 0, tex->IntFormat,
tex->Width, tex->Height, 0, format, type, NULL);
+ if (save_unpack_obj != NULL)
+ _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB,
+ save_unpack_obj->Name);
/* load image */
_mesa_TexSubImage2D(tex->Target, 0,
0, 0, width, height, format, type, pixels);
@@ -1046,6 +1026,135 @@ init_blit_depth_pixels(GLcontext *ctx)
/**
+ * Try to do a glBlitFramebuffer using no-copy texturing.
+ * We can do this when the src renderbuffer is actually a texture.
+ * But if the src buffer == dst buffer we cannot do this.
+ *
+ * \return new buffer mask indicating the buffers left to blit using the
+ * normal path.
+ */
+static GLbitfield
+blitframebuffer_texture(GLcontext *ctx,
+ GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+ GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+ GLbitfield mask, GLenum filter)
+{
+ if (mask & GL_COLOR_BUFFER_BIT) {
+ const struct gl_framebuffer *drawFb = ctx->DrawBuffer;
+ const struct gl_framebuffer *readFb = ctx->ReadBuffer;
+ const struct gl_renderbuffer_attachment *drawAtt =
+ &drawFb->Attachment[drawFb->_ColorDrawBufferIndexes[0]];
+ const struct gl_renderbuffer_attachment *readAtt =
+ &readFb->Attachment[readFb->_ColorReadBufferIndex];
+
+ if (readAtt && readAtt->Texture) {
+ const struct gl_texture_object *texObj = readAtt->Texture;
+ const GLuint srcLevel = readAtt->TextureLevel;
+ const GLenum minFilterSave = texObj->MinFilter;
+ const GLenum magFilterSave = texObj->MagFilter;
+ const GLint baseLevelSave = texObj->BaseLevel;
+ const GLint maxLevelSave = texObj->MaxLevel;
+ const GLenum wrapSSave = texObj->WrapS;
+ const GLenum wrapTSave = texObj->WrapT;
+ const GLenum target = texObj->Target;
+
+ if (drawAtt->Texture == readAtt->Texture) {
+ /* Can't use same texture as both the source and dest. We need
+ * to handle overlapping blits and besides, some hw may not
+ * support this.
+ */
+ return mask;
+ }
+
+ if (target != GL_TEXTURE_2D && target != GL_TEXTURE_RECTANGLE_ARB) {
+ /* Can't handle other texture types at this time */
+ return mask;
+ }
+
+ /*
+ printf("Blit from texture!\n");
+ printf(" srcAtt %p dstAtt %p\n", readAtt, drawAtt);
+ printf(" srcTex %p dstText %p\n", texObj, drawAtt->Texture);
+ */
+
+ /* Prepare src texture state */
+ _mesa_BindTexture(target, texObj->Name);
+ _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, filter);
+ _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, filter);
+ _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, srcLevel);
+ _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel);
+ _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ _mesa_set_enable(ctx, target, GL_TRUE);
+
+ /* Prepare vertex data (the VBO was previously created and bound) */
+ {
+ struct vertex {
+ GLfloat x, y, s, t;
+ };
+ struct vertex verts[4];
+ GLfloat s0, t0, s1, t1;
+
+ if (target == GL_TEXTURE_2D) {
+ const struct gl_texture_image *texImage
+ = _mesa_select_tex_image(ctx, texObj, target, srcLevel);
+ s0 = srcX0 / (float) texImage->Width;
+ s1 = srcX1 / (float) texImage->Width;
+ t0 = srcY0 / (float) texImage->Height;
+ t1 = srcY1 / (float) texImage->Height;
+ }
+ else {
+ assert(target == GL_TEXTURE_RECTANGLE_ARB);
+ s0 = srcX0;
+ s1 = srcX1;
+ t0 = srcY0;
+ t1 = srcY1;
+ }
+
+ verts[0].x = (GLfloat) dstX0;
+ verts[0].y = (GLfloat) dstY0;
+ verts[1].x = (GLfloat) dstX1;
+ verts[1].y = (GLfloat) dstY0;
+ verts[2].x = (GLfloat) dstX1;
+ verts[2].y = (GLfloat) dstY1;
+ verts[3].x = (GLfloat) dstX0;
+ verts[3].y = (GLfloat) dstY1;
+
+ verts[0].s = s0;
+ verts[0].t = t0;
+ verts[1].s = s1;
+ verts[1].t = t0;
+ verts[2].s = s1;
+ verts[2].t = t1;
+ verts[3].s = s0;
+ verts[3].t = t1;
+
+ _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts);
+ }
+
+ _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+ /* Restore texture object state, the texture binding will
+ * be restored by _mesa_meta_end().
+ */
+ _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilterSave);
+ _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilterSave);
+ _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, baseLevelSave);
+ _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave);
+ _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, wrapSSave);
+ _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, wrapTSave);
+
+ /* Done with color buffer */
+ mask &= ~GL_COLOR_BUFFER_BIT;
+ }
+ }
+
+ return mask;
+}
+
+
+/**
* Meta implementation of ctx->Driver.BlitFramebuffer() in terms
* of texture mapping and polygon rendering.
*/
@@ -1116,6 +1225,18 @@ _mesa_meta_BlitFramebuffer(GLcontext *ctx,
_mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, blit->VBO);
}
+ /* Try faster, direct texture approach first */
+ mask = blitframebuffer_texture(ctx, srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1, mask, filter);
+ if (mask == 0x0) {
+ _mesa_meta_end(ctx);
+ return;
+ }
+
+ /* Continue with "normal" approach which involves copying the src rect
+ * into a temporary texture and is "blitted" by drawing a textured quad.
+ */
+
newTex = alloc_texture(tex, srcW, srcH, GL_RGBA);
/* vertex positions/texcoords (after texture allocation!) */
@@ -1163,7 +1284,7 @@ _mesa_meta_BlitFramebuffer(GLcontext *ctx,
_mesa_ReadPixels(srcX, srcY, srcW, srcH,
GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp);
- setup_drawpix_texture(tex, newTex, GL_DEPTH_COMPONENT, srcW, srcH,
+ setup_drawpix_texture(ctx, tex, newTex, GL_DEPTH_COMPONENT, srcW, srcH,
GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp);
_mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP);
@@ -1226,8 +1347,6 @@ _mesa_meta_Clear(GLcontext *ctx, GLbitfield buffers)
/* create vertex array buffer */
_mesa_GenBuffersARB(1, &clear->VBO);
_mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, clear->VBO);
- _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts),
- NULL, GL_DYNAMIC_DRAW_ARB);
/* setup vertex arrays */
_mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x));
@@ -1303,7 +1422,8 @@ _mesa_meta_Clear(GLcontext *ctx, GLbitfield buffers)
}
/* upload new vertex data */
- _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts);
+ _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), verts,
+ GL_DYNAMIC_DRAW_ARB);
}
/* draw quad */
@@ -1726,7 +1846,7 @@ _mesa_meta_DrawPixels(GLcontext *ctx,
if (!drawpix->StencilFP)
init_draw_stencil_pixels(ctx);
- setup_drawpix_texture(tex, newTex, texIntFormat, width, height,
+ setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height,
GL_ALPHA, type, pixels);
_mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
@@ -1769,14 +1889,14 @@ _mesa_meta_DrawPixels(GLcontext *ctx,
_mesa_ProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0,
ctx->Current.RasterColor);
- setup_drawpix_texture(tex, newTex, texIntFormat, width, height,
+ setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height,
format, type, pixels);
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
else {
/* Drawing RGBA */
- setup_drawpix_texture(tex, newTex, texIntFormat, width, height,
+ setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height,
format, type, pixels);
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
@@ -1924,7 +2044,7 @@ _mesa_meta_Bitmap(GLcontext *ctx,
_mesa_set_enable(ctx, GL_ALPHA_TEST, GL_TRUE);
_mesa_AlphaFunc(GL_GREATER, 0.0);
- setup_drawpix_texture(tex, newTex, texIntFormat, width, height,
+ setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height,
GL_ALPHA, GL_UNSIGNED_BYTE, bitmap8);
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
@@ -1941,6 +2061,71 @@ _mesa_meta_Bitmap(GLcontext *ctx,
/**
+ * Check if the call to _mesa_meta_GenerateMipmap() will require a
+ * software fallback. The fallback path will require that the texture
+ * images are mapped.
+ * \return GL_TRUE if a fallback is needed, GL_FALSE otherwise
+ */
+GLboolean
+_mesa_meta_check_generate_mipmap_fallback(GLcontext *ctx, GLenum target,
+ struct gl_texture_object *texObj)
+{
+ const GLuint fboSave = ctx->DrawBuffer->Name;
+ struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap;
+ struct gl_texture_image *baseImage;
+ GLuint srcLevel;
+ GLenum status;
+
+ /* check for fallbacks */
+ if (!ctx->Extensions.EXT_framebuffer_object ||
+ target == GL_TEXTURE_3D) {
+ return GL_TRUE;
+ }
+
+ srcLevel = texObj->BaseLevel;
+ baseImage = _mesa_select_tex_image(ctx, texObj, target, srcLevel);
+ if (!baseImage || _mesa_is_format_compressed(baseImage->TexFormat)) {
+ return GL_TRUE;
+ }
+
+ /*
+ * Test that we can actually render in the texture's format.
+ */
+ if (!mipmap->FBO)
+ _mesa_GenFramebuffersEXT(1, &mipmap->FBO);
+ _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mipmap->FBO);
+
+ if (target == GL_TEXTURE_1D) {
+ _mesa_FramebufferTexture1DEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ target, texObj->Name, srcLevel);
+ }
+ else if (target == GL_TEXTURE_3D) {
+ GLint zoffset = 0;
+ _mesa_FramebufferTexture3DEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ target, texObj->Name, srcLevel, zoffset);
+ }
+ else {
+ /* 2D / cube */
+ _mesa_FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ target, texObj->Name, srcLevel);
+ }
+
+ status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+
+ _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboSave);
+
+ if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
* Called via ctx->Driver.GenerateMipmap()
* Note: texture borders and 3D texture support not yet complete.
*/
@@ -1968,9 +2153,7 @@ _mesa_meta_GenerateMipmap(GLcontext *ctx, GLenum target,
GLuint dstLevel;
GLuint border = 0;
- /* check for fallbacks */
- if (!ctx->Extensions.EXT_framebuffer_object ||
- target == GL_TEXTURE_3D) {
+ if (_mesa_meta_check_generate_mipmap_fallback(ctx, target, texObj)) {
_mesa_generate_mipmap(ctx, target, texObj);
return;
}
@@ -2011,10 +2194,8 @@ _mesa_meta_GenerateMipmap(GLcontext *ctx, GLenum target,
}
if (!mipmap->FBO) {
- /* Bind the new renderbuffer to the color attachment point. */
_mesa_GenFramebuffersEXT(1, &mipmap->FBO);
}
-
_mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mipmap->FBO);
_mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
@@ -2217,7 +2398,7 @@ _mesa_meta_GenerateMipmap(GLcontext *ctx, GLenum target,
_mesa_DrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
/* sanity check */
- status = _mesa_CheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT);
+ status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
abort();
break;
@@ -2312,6 +2493,12 @@ copy_tex_image(GLcontext *ctx, GLuint dims, GLenum target, GLint level,
return;
}
+ if (texImage->TexFormat == MESA_FORMAT_NONE)
+ texImage->TexFormat = ctx->Driver.ChooseTextureFormat(ctx,
+ internalFormat,
+ format,
+ type);
+
_mesa_unlock_texture(ctx, texObj); /* need to unlock first */
/*
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-07 04:55:58 +0000