diff options
Diffstat (limited to 'mesalib/src/mesa/drivers/common/meta.c')
| -rw-r--r-- | mesalib/src/mesa/drivers/common/meta.c | 1516 |
1 files changed, 1350 insertions, 166 deletions
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c index b6c6ef70f..cd9075b39 100644 --- a/mesalib/src/mesa/drivers/common/meta.c +++ b/mesalib/src/mesa/drivers/common/meta.c @@ -37,18 +37,26 @@ #include "main/arrayobj.h" #include "main/blend.h" #include "main/bufferobj.h" +#include "main/buffers.h" +#include "main/colortab.h" +#include "main/convolve.h" #include "main/depth.h" #include "main/enable.h" +#include "main/fbobject.h" +#include "main/formats.h" #include "main/image.h" #include "main/macros.h" #include "main/matrix.h" +#include "main/mipmap.h" #include "main/polygon.h" #include "main/readpix.h" #include "main/scissor.h" #include "main/shaders.h" +#include "main/state.h" #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" @@ -60,6 +68,33 @@ #include "drivers/common/meta.h" +/** Return offset in bytes of the field within a vertex struct */ +#define OFFSET(FIELD) ((void *) offsetof(struct vertex, FIELD)) + + +/** + * Flags passed to _mesa_meta_begin(). + */ +/*@{*/ +#define META_ALL ~0x0 +#define META_ALPHA_TEST 0x1 +#define META_BLEND 0x2 /**< includes logicop */ +#define META_COLOR_MASK 0x4 +#define META_DEPTH_TEST 0x8 +#define META_FOG 0x10 +#define META_PIXEL_STORE 0x20 +#define META_PIXEL_TRANSFER 0x40 +#define META_RASTERIZATION 0x80 +#define META_SCISSOR 0x100 +#define META_SHADER 0x200 +#define META_STENCIL_TEST 0x400 +#define META_TRANSFORM 0x800 /**< modelview, projection, clip planes */ +#define META_TEXTURE 0x1000 +#define META_VERTEX 0x2000 +#define META_VIEWPORT 0x4000 +/*@}*/ + + /** * State which we may save/restore across meta ops. * XXX this may be incomplete... @@ -87,6 +122,17 @@ struct save_state /** META_PIXEL_STORE */ struct gl_pixelstore_attrib Pack, Unpack; + /** META_PIXEL_TRANSFER */ + GLfloat RedBias, RedScale; + GLfloat GreenBias, GreenScale; + GLfloat BlueBias, BlueScale; + GLfloat AlphaBias, AlphaScale; + GLfloat DepthBias, DepthScale; + GLboolean MapColorFlag; + GLboolean Convolution1DEnabled; + GLboolean Convolution2DEnabled; + GLboolean Separable2DEnabled; + /** META_RASTERIZATION */ GLenum FrontPolygonMode, BackPolygonMode; GLboolean PolygonOffset; @@ -138,6 +184,24 @@ struct save_state /** + * Temporary texture used for glBlitFramebuffer, glDrawPixels, etc. + * This is currently shared by all the meta ops. But we could create a + * separate one for each of glDrawPixel, glBlitFramebuffer, glCopyPixels, etc. + */ +struct temp_texture +{ + GLuint TexObj; + GLenum Target; /**< GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE */ + GLsizei MinSize; /**< Min texture size to allocate */ + GLsizei MaxSize; /**< Max possible texture size */ + GLboolean NPOT; /**< Non-power of two size OK? */ + GLsizei Width, Height; /**< Current texture size */ + GLenum IntFormat; + GLfloat Sright, Ttop; /**< right, top texcoords */ +}; + + +/** * State for glBlitFramebufer() */ struct blit_state @@ -181,19 +245,24 @@ struct drawpix_state /** - * Temporary texture used for glBlitFramebuffer, glDrawPixels, etc. - * This is currently shared by all the meta ops. But we could create a - * separate one for each of glDrawPixel, glBlitFramebuffer, glCopyPixels, etc. + * State for glBitmap() */ -struct temp_texture +struct bitmap_state { - GLuint TexObj; - GLenum Target; /**< GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE */ - GLsizei MaxSize; /**< Max possible texture size */ - GLboolean NPOT; /**< Non-power of two size OK? */ - GLsizei Width, Height; /**< Current texture size */ - GLenum IntFormat; - GLfloat Sright, Ttop; /**< right, top texcoords */ + GLuint ArrayObj; + GLuint VBO; + struct temp_texture Tex; /**< separate texture from other meta ops */ +}; + + +/** + * State for _mesa_meta_generate_mipmap() + */ +struct gen_mipmap_state +{ + GLuint ArrayObj; + GLuint VBO; + GLuint FBO; }; @@ -206,15 +275,12 @@ struct gl_meta_state struct temp_texture TempTex; - struct blit_state Blit; /**< For _mesa_meta_blit_framebuffer() */ - struct clear_state Clear; /**< For _mesa_meta_clear() */ - struct copypix_state CopyPix; /**< For _mesa_meta_copy_pixels() */ - struct drawpix_state DrawPix; /**< For _mesa_meta_draw_pixels() */ - - /* other possible meta-ops: - * glBitmap() - * glGenerateMipmap() - */ + struct blit_state Blit; /**< For _mesa_meta_BlitFramebuffer() */ + struct clear_state Clear; /**< For _mesa_meta_Clear() */ + struct copypix_state CopyPix; /**< For _mesa_meta_CopyPixels() */ + struct drawpix_state DrawPix; /**< For _mesa_meta_DrawPixels() */ + struct bitmap_state Bitmap; /**< For _mesa_meta_Bitmap() */ + struct gen_mipmap_state Mipmap; /**< For _mesa_meta_GenerateMipmap() */ }; @@ -264,16 +330,16 @@ _mesa_meta_begin(GLcontext *ctx, GLbitfield state) if (state & META_ALPHA_TEST) { save->AlphaEnabled = ctx->Color.AlphaEnabled; if (ctx->Color.AlphaEnabled) - _mesa_Disable(GL_ALPHA_TEST); + _mesa_set_enable(ctx, GL_ALPHA_TEST, GL_FALSE); } if (state & META_BLEND) { save->BlendEnabled = ctx->Color.BlendEnabled; if (ctx->Color.BlendEnabled) - _mesa_Disable(GL_BLEND); + _mesa_set_enable(ctx, GL_BLEND, GL_FALSE); save->ColorLogicOpEnabled = ctx->Color.ColorLogicOpEnabled; if (ctx->Color.ColorLogicOpEnabled) - _mesa_Disable(GL_COLOR_LOGIC_OP); + _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, GL_FALSE); } if (state & META_COLOR_MASK) { @@ -288,7 +354,7 @@ _mesa_meta_begin(GLcontext *ctx, GLbitfield state) if (state & META_DEPTH_TEST) { save->Depth = ctx->Depth; /* struct copy */ if (ctx->Depth.Test) - _mesa_Disable(GL_DEPTH_TEST); + _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_FALSE); } if (state & META_FOG) { @@ -304,6 +370,35 @@ _mesa_meta_begin(GLcontext *ctx, GLbitfield state) ctx->Unpack = ctx->DefaultPacking; } + if (state & META_PIXEL_TRANSFER) { + save->RedScale = ctx->Pixel.RedScale; + save->RedBias = ctx->Pixel.RedBias; + save->GreenScale = ctx->Pixel.GreenScale; + save->GreenBias = ctx->Pixel.GreenBias; + save->BlueScale = ctx->Pixel.BlueScale; + save->BlueBias = ctx->Pixel.BlueBias; + save->AlphaScale = ctx->Pixel.AlphaScale; + save->AlphaBias = ctx->Pixel.AlphaBias; + save->MapColorFlag = ctx->Pixel.MapColorFlag; + save->Convolution1DEnabled = ctx->Pixel.Convolution1DEnabled; + save->Convolution2DEnabled = ctx->Pixel.Convolution2DEnabled; + save->Separable2DEnabled = ctx->Pixel.Separable2DEnabled; + ctx->Pixel.RedScale = 1.0F; + ctx->Pixel.RedBias = 0.0F; + ctx->Pixel.GreenScale = 1.0F; + ctx->Pixel.GreenBias = 0.0F; + ctx->Pixel.BlueScale = 1.0F; + ctx->Pixel.BlueBias = 0.0F; + ctx->Pixel.AlphaScale = 1.0F; + ctx->Pixel.AlphaBias = 0.0F; + ctx->Pixel.MapColorFlag = GL_FALSE; + ctx->Pixel.Convolution1DEnabled = GL_FALSE; + ctx->Pixel.Convolution2DEnabled = GL_FALSE; + ctx->Pixel.Separable2DEnabled = GL_FALSE; + /* XXX more state */ + ctx->NewState |=_NEW_PIXEL; + } + if (state & META_RASTERIZATION) { save->FrontPolygonMode = ctx->Polygon.FrontMode; save->BackPolygonMode = ctx->Polygon.BackMode; @@ -345,7 +440,7 @@ _mesa_meta_begin(GLcontext *ctx, GLbitfield state) if (state & META_STENCIL_TEST) { save->Stencil = ctx->Stencil; /* struct copy */ if (ctx->Stencil.Enabled) - _mesa_Disable(GL_STENCIL_TEST); + _mesa_set_enable(ctx, GL_STENCIL_TEST, GL_FALSE); /* NOTE: other stencil state not reset */ } @@ -499,6 +594,23 @@ _mesa_meta_end(GLcontext *ctx) ctx->Unpack = save->Unpack; } + if (state & META_PIXEL_TRANSFER) { + ctx->Pixel.RedScale = save->RedScale; + ctx->Pixel.RedBias = save->RedBias; + ctx->Pixel.GreenScale = save->GreenScale; + ctx->Pixel.GreenBias = save->GreenBias; + ctx->Pixel.BlueScale = save->BlueScale; + ctx->Pixel.BlueBias = save->BlueBias; + ctx->Pixel.AlphaScale = save->AlphaScale; + ctx->Pixel.AlphaBias = save->AlphaBias; + ctx->Pixel.MapColorFlag = save->MapColorFlag; + ctx->Pixel.Convolution1DEnabled = save->Convolution1DEnabled; + ctx->Pixel.Convolution2DEnabled = save->Convolution2DEnabled; + ctx->Pixel.Separable2DEnabled = save->Separable2DEnabled; + /* XXX more state */ + ctx->NewState |=_NEW_PIXEL; + } + if (state & META_RASTERIZATION) { _mesa_PolygonMode(GL_FRONT, save->FrontPolygonMode); _mesa_PolygonMode(GL_BACK, save->BackPolygonMode); @@ -669,8 +781,35 @@ _mesa_meta_end(GLcontext *ctx) /** - * Return pointer to temp_texture info. This does some one-time init - * if needed. + * One-time init for a temp_texture object. + * Choose tex target, compute max tex size, etc. + */ +static void +init_temp_texture(GLcontext *ctx, struct temp_texture *tex) +{ + /* prefer texture rectangle */ + if (ctx->Extensions.NV_texture_rectangle) { + tex->Target = GL_TEXTURE_RECTANGLE; + tex->MaxSize = ctx->Const.MaxTextureRectSize; + tex->NPOT = GL_TRUE; + } + else { + /* use 2D texture, NPOT if possible */ + tex->Target = GL_TEXTURE_2D; + tex->MaxSize = 1 << (ctx->Const.MaxTextureLevels - 1); + tex->NPOT = ctx->Extensions.ARB_texture_non_power_of_two; + } + tex->MinSize = 16; /* 16 x 16 at least */ + assert(tex->MaxSize > 0); + + _mesa_GenTextures(1, &tex->TexObj); + _mesa_BindTexture(tex->Target, tex->TexObj); +} + + +/** + * Return pointer to temp_texture info for non-bitmap ops. + * This does some one-time init if needed. */ static struct temp_texture * get_temp_texture(GLcontext *ctx) @@ -678,24 +817,25 @@ get_temp_texture(GLcontext *ctx) struct temp_texture *tex = &ctx->Meta->TempTex; if (!tex->TexObj) { - /* do one-time init */ + init_temp_texture(ctx, tex); + } - /* prefer texture rectangle */ - if (ctx->Extensions.NV_texture_rectangle) { - tex->Target = GL_TEXTURE_RECTANGLE; - tex->MaxSize = ctx->Const.MaxTextureRectSize; - tex->NPOT = GL_TRUE; - } - else { - /* use 2D texture, NPOT if possible */ - tex->Target = GL_TEXTURE_2D; - tex->MaxSize = 1 << (ctx->Const.MaxTextureLevels - 1); - tex->NPOT = ctx->Extensions.ARB_texture_non_power_of_two; - } - assert(tex->MaxSize > 0); + return tex; +} - _mesa_GenTextures(1, &tex->TexObj); - _mesa_BindTexture(tex->Target, tex->TexObj); + +/** + * Return pointer to temp_texture info for _mesa_meta_bitmap(). + * We use a separate texture for bitmaps to reduce texture + * allocation/deallocation. + */ +static struct temp_texture * +get_bitmap_temp_texture(GLcontext *ctx) +{ + struct temp_texture *tex = &ctx->Meta->Bitmap.Tex; + + if (!tex->TexObj) { + init_temp_texture(ctx, tex); } return tex; @@ -717,6 +857,9 @@ alloc_texture(struct temp_texture *tex, { GLboolean newTex = GL_FALSE; + ASSERT(width <= tex->MaxSize); + ASSERT(height <= tex->MaxSize); + if (width > tex->Width || height > tex->Height || intFormat != tex->IntFormat) { @@ -724,13 +867,13 @@ alloc_texture(struct temp_texture *tex, if (tex->NPOT) { /* use non-power of two size */ - tex->Width = width; - tex->Height = height; + tex->Width = MAX2(tex->MinSize, width); + tex->Height = MAX2(tex->MinSize, height); } else { /* find power of two size */ GLsizei w, h; - w = h = 16; + w = h = tex->MinSize; while (w < width) w *= 2; while (h < height) @@ -803,7 +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, @@ -824,9 +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); @@ -874,14 +1026,143 @@ 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. */ void -_mesa_meta_blit_framebuffer(GLcontext *ctx, - GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield mask, GLenum filter) +_mesa_meta_BlitFramebuffer(GLcontext *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter) { struct blit_state *blit = &ctx->Meta->Blit; struct temp_texture *tex = get_temp_texture(ctx); @@ -892,7 +1173,10 @@ _mesa_meta_blit_framebuffer(GLcontext *ctx, const GLint srcH = abs(srcY1 - srcY0); const GLboolean srcFlipX = srcX1 < srcX0; const GLboolean srcFlipY = srcY1 < srcY0; - GLfloat verts[4][4]; /* four verts of X,Y,S,T */ + struct vertex { + GLfloat x, y, s, t; + }; + struct vertex verts[4]; GLboolean newTex; if (srcW > maxTexSize || srcH > maxTexSize) { @@ -931,10 +1215,8 @@ _mesa_meta_blit_framebuffer(GLcontext *ctx, NULL, GL_DYNAMIC_DRAW_ARB); /* setup vertex arrays */ - _mesa_VertexPointer(2, GL_FLOAT, sizeof(verts[0]), - (void *) (0 * sizeof(GLfloat))); - _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(verts[0]), - (void *) (2 * sizeof(GLfloat))); + _mesa_VertexPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); _mesa_EnableClientState(GL_VERTEX_ARRAY); _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); } @@ -943,33 +1225,45 @@ _mesa_meta_blit_framebuffer(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!) */ { - verts[0][0] = (GLfloat) dstX0; - verts[0][1] = (GLfloat) dstY0; - verts[1][0] = (GLfloat) dstX1; - verts[1][1] = (GLfloat) dstY0; - verts[2][0] = (GLfloat) dstX1; - verts[2][1] = (GLfloat) dstY1; - verts[3][0] = (GLfloat) dstX0; - verts[3][1] = (GLfloat) dstY1; - - verts[0][2] = 0.0F; - verts[0][3] = 0.0F; - verts[1][2] = tex->Sright; - verts[1][3] = 0.0F; - verts[2][2] = tex->Sright; - verts[2][3] = tex->Ttop; - verts[3][2] = 0.0F; - verts[3][3] = tex->Ttop; + 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 = 0.0F; + verts[0].t = 0.0F; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; /* upload new vertex data */ _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); } - _mesa_Enable(tex->Target); + _mesa_set_enable(ctx, tex->Target, GL_TRUE); if (mask & GL_COLOR_BUFFER_BIT) { setup_copypix_texture(tex, newTex, srcX, srcY, srcW, srcH, @@ -990,7 +1284,7 @@ _mesa_meta_blit_framebuffer(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); @@ -1011,7 +1305,7 @@ _mesa_meta_blit_framebuffer(GLcontext *ctx, /* XXX can't easily do stencil */ } - _mesa_Disable(tex->Target); + _mesa_set_enable(ctx, tex->Target, GL_FALSE); _mesa_meta_end(ctx); @@ -1026,10 +1320,13 @@ _mesa_meta_blit_framebuffer(GLcontext *ctx, * Meta implementation of ctx->Driver.Clear() in terms of polygon rendering. */ void -_mesa_meta_clear(GLcontext *ctx, GLbitfield buffers) +_mesa_meta_Clear(GLcontext *ctx, GLbitfield buffers) { struct clear_state *clear = &ctx->Meta->Clear; - GLfloat verts[4][7]; /* four verts of X,Y,Z,R,G,B,A */ + struct vertex { + GLfloat x, y, z, r, g, b, a; + }; + struct vertex verts[4]; /* save all state but scissor, pixel pack/unpack */ GLbitfield metaSave = META_ALL - META_SCISSOR - META_PIXEL_STORE; @@ -1050,14 +1347,10 @@ _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(verts[0]), - (void *) (0 * sizeof(GLfloat))); - _mesa_ColorPointer(4, GL_FLOAT, sizeof(verts[0]), - (void *) (3 * sizeof(GLfloat))); + _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_ColorPointer(4, GL_FLOAT, sizeof(struct vertex), OFFSET(r)); _mesa_EnableClientState(GL_VERTEX_ARRAY); _mesa_EnableClientState(GL_COLOR_ARRAY); } @@ -1107,26 +1400,30 @@ _mesa_meta_clear(GLcontext *ctx, GLbitfield buffers) const GLfloat z = 1.0 - 2.0 * ctx->Depth.Clear; GLuint i; - verts[0][0] = x0; - verts[0][1] = y0; - verts[0][2] = z; - verts[1][0] = x1; - verts[1][1] = y0; - verts[1][2] = z; - verts[2][0] = x1; - verts[2][1] = y1; - verts[2][2] = z; - verts[3][0] = x0; - verts[3][1] = y1; - verts[3][2] = z; + verts[0].x = x0; + verts[0].y = y0; + verts[0].z = z; + verts[1].x = x1; + verts[1].y = y0; + verts[1].z = z; + verts[2].x = x1; + verts[2].y = y1; + verts[2].z = z; + verts[3].x = x0; + verts[3].y = y1; + verts[3].z = z; /* vertex colors */ for (i = 0; i < 4; i++) { - COPY_4FV(&verts[i][3], ctx->Color.ClearColor); + verts[i].r = ctx->Color.ClearColor[0]; + verts[i].g = ctx->Color.ClearColor[1]; + verts[i].b = ctx->Color.ClearColor[2]; + verts[i].a = ctx->Color.ClearColor[3]; } /* 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 */ @@ -1141,13 +1438,16 @@ _mesa_meta_clear(GLcontext *ctx, GLbitfield buffers) * of texture mapping and polygon rendering. */ void -_mesa_meta_copy_pixels(GLcontext *ctx, GLint srcX, GLint srcY, - GLsizei width, GLsizei height, - GLint dstX, GLint dstY, GLenum type) +_mesa_meta_CopyPixels(GLcontext *ctx, GLint srcX, GLint srcY, + GLsizei width, GLsizei height, + GLint dstX, GLint dstY, GLenum type) { struct copypix_state *copypix = &ctx->Meta->CopyPix; struct temp_texture *tex = get_temp_texture(ctx); - GLfloat verts[4][5]; /* four verts of X,Y,Z,S,T */ + struct vertex { + GLfloat x, y, z, s, t; + }; + struct vertex verts[4]; GLboolean newTex; GLenum intFormat = GL_RGBA; @@ -1185,10 +1485,8 @@ _mesa_meta_copy_pixels(GLcontext *ctx, GLint srcX, GLint srcY, NULL, GL_DYNAMIC_DRAW_ARB); /* setup vertex arrays */ - _mesa_VertexPointer(3, GL_FLOAT, sizeof(verts[0]), - (void *) (0 * sizeof(GLfloat))); - _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(verts[0]), - (void *) (3 * sizeof(GLfloat))); + _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); _mesa_EnableClientState(GL_VERTEX_ARRAY); _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); } @@ -1207,26 +1505,26 @@ _mesa_meta_copy_pixels(GLcontext *ctx, GLint srcX, GLint srcY, const GLfloat dstY1 = dstY + height * ctx->Pixel.ZoomY; const GLfloat z = ctx->Current.RasterPos[2]; - verts[0][0] = dstX0; - verts[0][1] = dstY0; - verts[0][2] = z; - verts[0][3] = 0.0F; - verts[0][4] = 0.0F; - verts[1][0] = dstX1; - verts[1][1] = dstY0; - verts[1][2] = z; - verts[1][3] = tex->Sright; - verts[1][4] = 0.0F; - verts[2][0] = dstX1; - verts[2][1] = dstY1; - verts[2][2] = z; - verts[2][3] = tex->Sright; - verts[2][4] = tex->Ttop; - verts[3][0] = dstX0; - verts[3][1] = dstY1; - verts[3][2] = z; - verts[3][3] = 0.0F; - verts[3][4] = tex->Ttop; + verts[0].x = dstX0; + verts[0].y = dstY0; + verts[0].z = z; + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[1].x = dstX1; + verts[1].y = dstY0; + verts[1].z = z; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].x = dstX1; + verts[2].y = dstY1; + verts[2].z = z; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].x = dstX0; + verts[3].y = dstY1; + verts[3].z = z; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; /* upload new vertex data */ _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); @@ -1236,12 +1534,12 @@ _mesa_meta_copy_pixels(GLcontext *ctx, GLint srcX, GLint srcY, setup_copypix_texture(tex, newTex, srcX, srcY, width, height, GL_RGBA, GL_NEAREST); - _mesa_Enable(tex->Target); + _mesa_set_enable(ctx, tex->Target, GL_TRUE); /* draw textured quad */ _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - _mesa_Disable(tex->Target); + _mesa_set_enable(ctx, tex->Target, GL_FALSE); _mesa_meta_end(ctx); } @@ -1279,9 +1577,8 @@ tiled_draw_pixels(GLcontext *ctx, tileUnpack.SkipRows = unpack->SkipRows + j; - _mesa_meta_draw_pixels(ctx, tileX, tileY, - tileWidth, tileHeight, - format, type, &tileUnpack, pixels); + _mesa_meta_DrawPixels(ctx, tileX, tileY, tileWidth, tileHeight, + format, type, &tileUnpack, pixels); } } } @@ -1390,17 +1687,20 @@ init_draw_depth_pixels(GLcontext *ctx) * of texture mapping and polygon rendering. */ void -_mesa_meta_draw_pixels(GLcontext *ctx, - GLint x, GLint y, GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) +_mesa_meta_DrawPixels(GLcontext *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) { struct drawpix_state *drawpix = &ctx->Meta->DrawPix; struct temp_texture *tex = get_temp_texture(ctx); const struct gl_pixelstore_attrib unpackSave = ctx->Unpack; const GLuint origStencilMask = ctx->Stencil.WriteMask[0]; - GLfloat verts[4][5]; /* four verts of X,Y,Z,S,T */ + struct vertex { + GLfloat x, y, z, s, t; + }; + struct vertex verts[4]; GLenum texIntFormat; GLboolean fallback, newTex; GLbitfield metaExtraSave = 0x0; @@ -1494,26 +1794,26 @@ _mesa_meta_draw_pixels(GLcontext *ctx, const GLfloat y1 = y + height * ctx->Pixel.ZoomY; const GLfloat z = ctx->Current.RasterPos[2]; - verts[0][0] = x0; - verts[0][1] = y0; - verts[0][2] = z; - verts[0][3] = 0.0F; - verts[0][4] = 0.0F; - verts[1][0] = x1; - verts[1][1] = y0; - verts[1][2] = z; - verts[1][3] = tex->Sright; - verts[1][4] = 0.0F; - verts[2][0] = x1; - verts[2][1] = y1; - verts[2][2] = z; - verts[2][3] = tex->Sright; - verts[2][4] = tex->Ttop; - verts[3][0] = x0; - verts[3][1] = y1; - verts[3][2] = z; - verts[3][3] = 0.0F; - verts[3][4] = tex->Ttop; + verts[0].x = x0; + verts[0].y = y0; + verts[0].z = z; + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[1].x = x1; + verts[1].y = y0; + verts[1].z = z; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].x = x1; + verts[2].y = y1; + verts[2].z = z; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].x = x0; + verts[3].y = y1; + verts[3].z = z; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; } if (drawpix->ArrayObj == 0) { @@ -1529,17 +1829,15 @@ _mesa_meta_draw_pixels(GLcontext *ctx, verts, GL_DYNAMIC_DRAW_ARB); /* setup vertex arrays */ - _mesa_VertexPointer(3, GL_FLOAT, sizeof(verts[0]), - (void *) (0 * sizeof(GLfloat))); - _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(verts[0]), - (void *) (3 * sizeof(GLfloat))); + _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); _mesa_EnableClientState(GL_VERTEX_ARRAY); _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); /* set given unpack params */ ctx->Unpack = *unpack; - _mesa_Enable(tex->Target); + _mesa_set_enable(ctx, tex->Target, GL_TRUE); if (_mesa_is_stencil_format(format)) { /* Drawing stencil */ @@ -1548,7 +1846,7 @@ _mesa_meta_draw_pixels(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); @@ -1591,19 +1889,19 @@ _mesa_meta_draw_pixels(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); } - _mesa_Disable(tex->Target); + _mesa_set_enable(ctx, tex->Target, GL_FALSE); _mesa_DeleteBuffersARB(1, &vbo); @@ -1612,3 +1910,889 @@ _mesa_meta_draw_pixels(GLcontext *ctx, _mesa_meta_end(ctx); } + + +/** + * Do glBitmap with a alpha texture quad. Use the alpha test to + * cull the 'off' bits. If alpha test is already enabled, fall back + * to swrast (should be a rare case). + * A bitmap cache as in the gallium/mesa state tracker would + * improve performance a lot. + */ +void +_mesa_meta_Bitmap(GLcontext *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, + const GLubyte *bitmap1) +{ + struct bitmap_state *bitmap = &ctx->Meta->Bitmap; + struct temp_texture *tex = get_bitmap_temp_texture(ctx); + const GLenum texIntFormat = GL_ALPHA; + const struct gl_pixelstore_attrib unpackSave = *unpack; + struct vertex { + GLfloat x, y, z, s, t, r, g, b, a; + }; + struct vertex verts[4]; + GLboolean newTex; + GLubyte *bitmap8; + + /* + * Check if swrast fallback is needed. + */ + if (ctx->_ImageTransferState || + ctx->Color.AlphaEnabled || + ctx->Fog.Enabled || + ctx->Texture._EnabledUnits || + width > tex->MaxSize || + height > tex->MaxSize) { + _swrast_Bitmap(ctx, x, y, width, height, unpack, bitmap1); + return; + } + + /* Most GL state applies to glBitmap (like blending, stencil, etc), + * but a there's a few things we need to override: + */ + _mesa_meta_begin(ctx, (META_ALPHA_TEST | + META_PIXEL_STORE | + META_RASTERIZATION | + META_SHADER | + META_TEXTURE | + META_TRANSFORM | + META_VERTEX | + META_VIEWPORT)); + + if (bitmap->ArrayObj == 0) { + /* one-time setup */ + + /* create vertex array object */ + _mesa_GenVertexArraysAPPLE(1, &bitmap->ArrayObj); + _mesa_BindVertexArrayAPPLE(bitmap->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, &bitmap->VBO); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, bitmap->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)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); + _mesa_ColorPointer(4, GL_FLOAT, sizeof(struct vertex), OFFSET(r)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); + _mesa_EnableClientState(GL_COLOR_ARRAY); + } + else { + _mesa_BindVertexArray(bitmap->ArrayObj); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, bitmap->VBO); + } + + newTex = alloc_texture(tex, width, height, texIntFormat); + + /* vertex positions, texcoords, colors (after texture allocation!) */ + { + const GLfloat x0 = (GLfloat) x; + const GLfloat y0 = (GLfloat) y; + const GLfloat x1 = (GLfloat) (x + width); + const GLfloat y1 = (GLfloat) (y + height); + const GLfloat z = ctx->Current.RasterPos[2]; + GLuint i; + + verts[0].x = x0; + verts[0].y = y0; + verts[0].z = z; + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[1].x = x1; + verts[1].y = y0; + verts[1].z = z; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].x = x1; + verts[2].y = y1; + verts[2].z = z; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].x = x0; + verts[3].y = y1; + verts[3].z = z; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; + + for (i = 0; i < 4; i++) { + verts[i].r = ctx->Current.RasterColor[0]; + verts[i].g = ctx->Current.RasterColor[1]; + verts[i].b = ctx->Current.RasterColor[2]; + verts[i].a = ctx->Current.RasterColor[3]; + } + + /* upload new vertex data */ + _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); + } + + bitmap1 = _mesa_map_pbo_source(ctx, &unpackSave, bitmap1); + if (!bitmap1) + return; + + bitmap8 = (GLubyte *) _mesa_calloc(width * height); + if (bitmap8) { + _mesa_expand_bitmap(width, height, &unpackSave, bitmap1, + bitmap8, width, 0xff); + + _mesa_set_enable(ctx, tex->Target, GL_TRUE); + + _mesa_set_enable(ctx, GL_ALPHA_TEST, GL_TRUE); + _mesa_AlphaFunc(GL_GREATER, 0.0); + + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, + GL_ALPHA, GL_UNSIGNED_BYTE, bitmap8); + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + + _mesa_set_enable(ctx, tex->Target, GL_FALSE); + + _mesa_free(bitmap8); + } + + _mesa_unmap_pbo_source(ctx, &unpackSave); + + _mesa_meta_end(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. + */ +void +_mesa_meta_GenerateMipmap(GLcontext *ctx, GLenum target, + struct gl_texture_object *texObj) +{ + struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap; + struct vertex { + GLfloat x, y, s, t, r; + }; + struct vertex verts[4]; + const GLuint baseLevel = texObj->BaseLevel; + const GLuint maxLevel = texObj->MaxLevel; + const GLenum minFilterSave = texObj->MinFilter; + const GLenum magFilterSave = texObj->MagFilter; + const GLint baseLevelSave = texObj->BaseLevel; + const GLint maxLevelSave = texObj->MaxLevel; + const GLboolean genMipmapSave = texObj->GenerateMipmap; + const GLenum wrapSSave = texObj->WrapS; + const GLenum wrapTSave = texObj->WrapT; + const GLenum wrapRSave = texObj->WrapR; + const GLuint fboSave = ctx->DrawBuffer->Name; + const GLuint original_active_unit = ctx->Texture.CurrentUnit; + GLenum faceTarget; + GLuint dstLevel; + GLuint border = 0; + + if (_mesa_meta_check_generate_mipmap_fallback(ctx, target, texObj)) { + _mesa_generate_mipmap(ctx, target, texObj); + return; + } + + if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && + target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) { + faceTarget = target; + target = GL_TEXTURE_CUBE_MAP; + } + else { + faceTarget = target; + } + + _mesa_meta_begin(ctx, META_ALL); + + if (original_active_unit != 0) + _mesa_BindTexture(target, texObj->Name); + + if (mipmap->ArrayObj == 0) { + /* one-time setup */ + + /* create vertex array object */ + _mesa_GenVertexArraysAPPLE(1, &mipmap->ArrayObj); + _mesa_BindVertexArrayAPPLE(mipmap->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, &mipmap->VBO); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, mipmap->VBO); + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), + NULL, GL_DYNAMIC_DRAW_ARB); + + /* setup vertex arrays */ + _mesa_VertexPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); + } + else { + _mesa_BindVertexArray(mipmap->ArrayObj); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, mipmap->VBO); + } + + if (!mipmap->FBO) { + _mesa_GenFramebuffersEXT(1, &mipmap->FBO); + } + _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mipmap->FBO); + + _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + _mesa_TexParameteri(target, GL_GENERATE_MIPMAP, GL_FALSE); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); + + _mesa_set_enable(ctx, target, GL_TRUE); + + /* setup texcoords once (XXX what about border?) */ + switch (faceTarget) { + case GL_TEXTURE_1D: + case GL_TEXTURE_2D: + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[0].r = 0.0F; + verts[1].s = 1.0F; + verts[1].t = 0.0F; + verts[1].r = 0.0F; + verts[2].s = 1.0F; + verts[2].t = 1.0F; + verts[2].r = 0.0F; + verts[3].s = 0.0F; + verts[3].t = 1.0F; + verts[3].r = 0.0F; + break; + case GL_TEXTURE_3D: + abort(); + break; + default: + /* cube face */ + { + static const GLfloat st[4][2] = { + {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} + }; + GLuint i; + + /* loop over quad verts */ + for (i = 0; i < 4; i++) { + /* Compute sc = +/-scale and tc = +/-scale. + * Not +/-1 to avoid cube face selection ambiguity near the edges, + * though that can still sometimes happen with this scale factor... + */ + const GLfloat scale = 0.9999f; + const GLfloat sc = (2.0f * st[i][0] - 1.0f) * scale; + const GLfloat tc = (2.0f * st[i][1] - 1.0f) * scale; + + switch (faceTarget) { + case GL_TEXTURE_CUBE_MAP_POSITIVE_X: + verts[i].s = 1.0f; + verts[i].t = -tc; + verts[i].r = -sc; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: + verts[i].s = -1.0f; + verts[i].t = -tc; + verts[i].r = sc; + break; + case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: + verts[i].s = sc; + verts[i].t = 1.0f; + verts[i].r = tc; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: + verts[i].s = sc; + verts[i].t = -1.0f; + verts[i].r = -tc; + break; + case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: + verts[i].s = sc; + verts[i].t = -tc; + verts[i].r = 1.0f; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: + verts[i].s = -sc; + verts[i].t = -tc; + verts[i].r = -1.0f; + break; + default: + assert(0); + } + } + } + } + + _mesa_set_enable(ctx, target, GL_TRUE); + + /* texture is already locked, unlock now */ + _mesa_unlock_texture(ctx, texObj); + + for (dstLevel = baseLevel + 1; dstLevel <= maxLevel; dstLevel++) { + const struct gl_texture_image *srcImage; + const GLuint srcLevel = dstLevel - 1; + GLsizei srcWidth, srcHeight, srcDepth; + GLsizei dstWidth, dstHeight, dstDepth; + GLenum status; + + srcImage = _mesa_select_tex_image(ctx, texObj, faceTarget, srcLevel); + assert(srcImage->Border == 0); /* XXX we can fix this */ + + /* src size w/out border */ + srcWidth = srcImage->Width - 2 * border; + srcHeight = srcImage->Height - 2 * border; + srcDepth = srcImage->Depth - 2 * border; + + /* new dst size w/ border */ + dstWidth = MAX2(1, srcWidth / 2) + 2 * border; + dstHeight = MAX2(1, srcHeight / 2) + 2 * border; + dstDepth = MAX2(1, srcDepth / 2) + 2 * border; + + if (dstWidth == srcImage->Width && + dstHeight == srcImage->Height && + dstDepth == srcImage->Depth) { + /* all done */ + break; + } + + /* Create empty dest image */ + if (target == GL_TEXTURE_1D) { + _mesa_TexImage1D(target, dstLevel, srcImage->InternalFormat, + dstWidth, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + } + else if (target == GL_TEXTURE_3D) { + _mesa_TexImage3D(target, dstLevel, srcImage->InternalFormat, + dstWidth, dstHeight, dstDepth, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + } + else { + /* 2D or cube */ + _mesa_TexImage2D(faceTarget, dstLevel, srcImage->InternalFormat, + dstWidth, dstHeight, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + + if (target == GL_TEXTURE_CUBE_MAP) { + /* If texturing from a cube, we need to make sure all src faces + * have been defined (even if we're not sampling from them.) + * Otherwise the texture object will be 'incomplete' and + * texturing from it will not be allowed. + */ + GLuint face; + for (face = 0; face < 6; face++) { + if (!texObj->Image[face][srcLevel] || + texObj->Image[face][srcLevel]->Width != srcWidth) { + _mesa_TexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, + srcLevel, srcImage->InternalFormat, + srcWidth, srcHeight, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + } + } + } + } + + /* setup vertex positions */ + { + verts[0].x = 0.0F; + verts[0].y = 0.0F; + verts[1].x = (GLfloat) dstWidth; + verts[1].y = 0.0F; + verts[2].x = (GLfloat) dstWidth; + verts[2].y = (GLfloat) dstHeight; + verts[3].x = 0.0F; + verts[3].y = (GLfloat) dstHeight; + + /* upload new vertex data */ + _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); + } + + /* limit sampling to src level */ + _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, srcLevel); + _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel); + + /* Set to draw into the current dstLevel */ + if (target == GL_TEXTURE_1D) { + _mesa_FramebufferTexture1DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + target, + texObj->Name, + dstLevel); + } + else if (target == GL_TEXTURE_3D) { + GLint zoffset = 0; /* XXX unfinished */ + _mesa_FramebufferTexture3DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + target, + texObj->Name, + dstLevel, zoffset); + } + else { + /* 2D / cube */ + _mesa_FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + faceTarget, + texObj->Name, + dstLevel); + } + + _mesa_DrawBuffer(GL_COLOR_ATTACHMENT0_EXT); + + /* sanity check */ + status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); + if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { + abort(); + break; + } + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + } + + _mesa_lock_texture(ctx, texObj); /* relock */ + + _mesa_meta_end(ctx); + + _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_GENERATE_MIPMAP, genMipmapSave); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, wrapSSave); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, wrapTSave); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, wrapRSave); + + _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboSave); +} + + +/** + * Determine the GL data type to use for the temporary image read with + * ReadPixels() and passed to Tex[Sub]Image(). + */ +static GLenum +get_temp_image_type(GLcontext *ctx, GLenum baseFormat) +{ + switch (baseFormat) { + case GL_RGBA: + case GL_RGB: + case GL_ALPHA: + case GL_LUMINANCE: + case GL_LUMINANCE_ALPHA: + case GL_INTENSITY: + if (ctx->DrawBuffer->Visual.redBits <= 8) + return GL_UNSIGNED_BYTE; + else if (ctx->DrawBuffer->Visual.redBits <= 8) + return GL_UNSIGNED_SHORT; + else + return GL_FLOAT; + case GL_DEPTH_COMPONENT: + return GL_UNSIGNED_INT; + case GL_DEPTH_STENCIL: + return GL_UNSIGNED_INT_24_8; + default: + _mesa_problem(ctx, "Unexpected format in get_temp_image_type()"); + return 0; + } +} + + +/** + * Helper for _mesa_meta_CopyTexImage1/2D() functions. + * Have to be careful with locking and meta state for pixel transfer. + */ +static void +copy_tex_image(GLcontext *ctx, GLuint dims, GLenum target, GLint level, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLsizei height, GLint border) +{ + struct gl_texture_object *texObj; + struct gl_texture_image *texImage; + GLsizei postConvWidth = width, postConvHeight = height; + GLenum format, type; + GLint bpp; + void *buf; + + texObj = _mesa_get_current_tex_object(ctx, target); + texImage = _mesa_get_tex_image(ctx, texObj, target, level); + + format = _mesa_base_tex_format(ctx, internalFormat); + type = get_temp_image_type(ctx, format); + bpp = _mesa_bytes_per_pixel(format, type); + if (bpp <= 0) { + _mesa_problem(ctx, "Bad bpp in meta copy_tex_image()"); + return; + } + + /* + * Alloc image buffer (XXX could use a PBO) + */ + buf = _mesa_malloc(width * height * bpp); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); + 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 */ + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, height, + format, type, &ctx->Pack, buf); + _mesa_meta_end(ctx); + + /* + * Prepare for new texture image size/data + */ +#if FEATURE_convolve + if (_mesa_is_color_format(internalFormat)) { + _mesa_adjust_image_for_convolution(ctx, 2, + &postConvWidth, &postConvHeight); + } +#endif + + if (texImage->Data) { + ctx->Driver.FreeTexImageData(ctx, texImage); + } + + _mesa_init_teximage_fields(ctx, target, texImage, + postConvWidth, postConvHeight, 1, + border, internalFormat); + + /* + * Store texture data (with pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE); + + _mesa_update_state(ctx); /* to update pixel transfer state */ + + if (target == GL_TEXTURE_1D) { + ctx->Driver.TexImage1D(ctx, target, level, internalFormat, + width, border, format, type, + buf, &ctx->Unpack, texObj, texImage); + } + else { + ctx->Driver.TexImage2D(ctx, target, level, internalFormat, + width, height, border, format, type, + buf, &ctx->Unpack, texObj, texImage); + } + _mesa_meta_end(ctx); + + _mesa_lock_texture(ctx, texObj); /* re-lock */ + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyTexImage1D(GLcontext *ctx, GLenum target, GLint level, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLint border) +{ + copy_tex_image(ctx, 1, target, level, internalFormat, x, y, + width, 1, border); +} + + +void +_mesa_meta_CopyTexImage2D(GLcontext *ctx, GLenum target, GLint level, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLsizei height, GLint border) +{ + copy_tex_image(ctx, 2, target, level, internalFormat, x, y, + width, height, border); +} + + + +/** + * Helper for _mesa_meta_CopyTexSubImage1/2/3D() functions. + * Have to be careful with locking and meta state for pixel transfer. + */ +static void +copy_tex_sub_image(GLcontext *ctx, GLuint dims, GLenum target, GLint level, + GLint xoffset, GLint yoffset, GLint zoffset, + GLint x, GLint y, + GLsizei width, GLsizei height) +{ + struct gl_texture_object *texObj; + struct gl_texture_image *texImage; + GLenum format, type; + GLint bpp; + void *buf; + + texObj = _mesa_get_current_tex_object(ctx, target); + texImage = _mesa_select_tex_image(ctx, texObj, target, level); + + format = _mesa_get_format_base_format(texImage->TexFormat); + type = get_temp_image_type(ctx, format); + bpp = _mesa_bytes_per_pixel(format, type); + if (bpp <= 0) { + _mesa_problem(ctx, "Bad bpp in meta copy_tex_sub_image()"); + return; + } + + /* + * Alloc image buffer (XXX could use a PBO) + */ + buf = _mesa_malloc(width * height * bpp); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%uD", dims); + return; + } + + _mesa_unlock_texture(ctx, texObj); /* need to unlock first */ + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, height, + format, type, &ctx->Pack, buf); + _mesa_meta_end(ctx); + + _mesa_update_state(ctx); /* to update pixel transfer state */ + + /* + * Store texture data (with pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE); + if (target == GL_TEXTURE_1D) { + ctx->Driver.TexSubImage1D(ctx, target, level, xoffset, + width, format, type, buf, + &ctx->Unpack, texObj, texImage); + } + else if (target == GL_TEXTURE_3D) { + ctx->Driver.TexSubImage3D(ctx, target, level, xoffset, yoffset, zoffset, + width, height, 1, format, type, buf, + &ctx->Unpack, texObj, texImage); + } + else { + ctx->Driver.TexSubImage2D(ctx, target, level, xoffset, yoffset, + width, height, format, type, buf, + &ctx->Unpack, texObj, texImage); + } + _mesa_meta_end(ctx); + + _mesa_lock_texture(ctx, texObj); /* re-lock */ + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, + GLint xoffset, + GLint x, GLint y, GLsizei width) +{ + copy_tex_sub_image(ctx, 1, target, level, xoffset, 0, 0, + x, y, width, 1); +} + + +void +_mesa_meta_CopyTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, + GLint xoffset, GLint yoffset, + GLint x, GLint y, + GLsizei width, GLsizei height) +{ + copy_tex_sub_image(ctx, 2, target, level, xoffset, yoffset, 0, + x, y, width, height); +} + + +void +_mesa_meta_CopyTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, + GLint xoffset, GLint yoffset, GLint zoffset, + GLint x, GLint y, + GLsizei width, GLsizei height) +{ + copy_tex_sub_image(ctx, 3, target, level, xoffset, yoffset, zoffset, + x, y, width, height); +} + + +void +_mesa_meta_CopyColorTable(GLcontext *ctx, + GLenum target, GLenum internalformat, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) _mesa_malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorTable"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ColorTable(target, internalformat, width, GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyColorSubTable(GLcontext *ctx,GLenum target, GLsizei start, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) _mesa_malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorSubTable"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ColorSubTable(target, start, width, GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target, + GLenum internalFormat, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) _mesa_malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyConvolutionFilter2D"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + _mesa_update_state(ctx); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ConvolutionFilter1D(target, internalFormat, width, + GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyConvolutionFilter2D(GLcontext *ctx, GLenum target, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLsizei height) +{ + GLfloat *buf; + + buf = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyConvolutionFilter2D"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + _mesa_update_state(ctx); + + ctx->Driver.ReadPixels(ctx, x, y, width, height, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ConvolutionFilter2D(target, internalFormat, width, height, + GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} |