| /* |
| * Author: Max Lingua <sunmax@libero.it> |
| */ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| |
| #include "glheader.h" |
| #include "macros.h" |
| #include "mtypes.h" |
| #include "simple_list.h" |
| #include "enums.h" |
| |
| #include "mm.h" |
| #include "s3v_context.h" |
| #include "s3v_tex.h" |
| |
| |
| static void s3vSetTexImages( s3vContextPtr vmesa, |
| struct gl_texture_object *tObj ) |
| { |
| GLuint height, width, pitch, i, /*textureFormat,*/ log_pitch; |
| s3vTextureObjectPtr t = (s3vTextureObjectPtr) tObj->DriverData; |
| const struct gl_texture_image *baseImage = tObj->Image[0][tObj->BaseLevel]; |
| GLint firstLevel, lastLevel, numLevels; |
| GLint log2Width, log2Height; |
| #if TEX_DEBUG_ON |
| static unsigned int times=0; |
| DEBUG_TEX(("*** s3vSetTexImages: #%i ***\n", ++times)); |
| #endif |
| |
| t->texelBytes = 2; /* FIXME: always 2 ? */ |
| |
| /* Compute which mipmap levels we really want to send to the hardware. |
| * This depends on the base image size, GL_TEXTURE_MIN_LOD, |
| * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. |
| * Yes, this looks overly complicated, but it's all needed. |
| */ |
| if (tObj->MinFilter == GL_LINEAR || tObj->MinFilter == GL_NEAREST) { |
| firstLevel = lastLevel = tObj->BaseLevel; |
| } |
| else { |
| firstLevel = tObj->BaseLevel + (GLint) (tObj->MinLod + 0.5); |
| firstLevel = MAX2(firstLevel, tObj->BaseLevel); |
| lastLevel = tObj->BaseLevel + (GLint) (tObj->MaxLod + 0.5); |
| lastLevel = MAX2(lastLevel, tObj->BaseLevel); |
| lastLevel = MIN2(lastLevel, tObj->BaseLevel + baseImage->MaxLog2); |
| lastLevel = MIN2(lastLevel, tObj->MaxLevel); |
| lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */ |
| } |
| |
| /* save these values */ |
| t->firstLevel = firstLevel; |
| t->lastLevel = lastLevel; |
| |
| numLevels = lastLevel - firstLevel + 1; |
| |
| log2Width = tObj->Image[0][firstLevel]->WidthLog2; |
| log2Height = tObj->Image[0][firstLevel]->HeightLog2; |
| |
| |
| /* Figure out the amount of memory required to hold all the mipmap |
| * levels. Choose the smallest pitch to accomodate the largest |
| * mipmap: |
| */ |
| width = tObj->Image[0][firstLevel]->Width * t->texelBytes; |
| for (pitch = 32, log_pitch=2 ; pitch < width ; pitch *= 2 ) |
| log_pitch++; |
| |
| /* All images must be loaded at this pitch. Count the number of |
| * lines required: |
| */ |
| for ( height = i = 0 ; i < numLevels ; i++ ) { |
| t->image[i].image = tObj->Image[0][firstLevel + i]; |
| t->image[i].offset = height * pitch; |
| t->image[i].internalFormat = baseImage->_BaseFormat; |
| height += t->image[i].image->Height; |
| t->TextureBaseAddr[i] = (t->BufAddr + t->image[i].offset + |
| _TEXALIGN) & (GLuint)(~_TEXALIGN); |
| } |
| |
| t->Pitch = pitch; |
| t->WidthLog2 = log2Width; |
| t->totalSize = height*pitch; |
| t->max_level = i-1; |
| vmesa->dirty |= S3V_UPLOAD_TEX0 /* | S3V_UPLOAD_TEX1*/; |
| vmesa->restore_primitive = -1; |
| DEBUG(("<><>pitch = TexStride = %i\n", pitch)); |
| DEBUG(("log2Width = %i\n", log2Width)); |
| |
| s3vUploadTexImages( vmesa, t ); |
| } |
| |
| static void s3vUpdateTexEnv( GLcontext *ctx, GLuint unit ) |
| { |
| s3vContextPtr vmesa = S3V_CONTEXT(ctx); |
| const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; |
| const struct gl_texture_object *tObj = texUnit->_Current; |
| const GLuint format = tObj->Image[0][tObj->BaseLevel]->_BaseFormat; |
| /* |
| s3vTextureObjectPtr t = (s3vTextureObjectPtr)tObj->DriverData; |
| GLuint tc; |
| */ |
| GLuint alpha = 0; |
| GLuint cmd = vmesa->CMD; |
| #if TEX_DEBUG_ON |
| static unsigned int times=0; |
| DEBUG_TEX(("*** s3vUpdateTexEnv: %i ***\n", ++times)); |
| #endif |
| |
| cmd &= ~TEX_COL_MASK; |
| cmd &= ~TEX_BLEND_MAKS; |
| /* cmd &= ~ALPHA_BLEND_MASK; */ |
| |
| DEBUG(("format = ")); |
| |
| switch (format) { |
| case GL_RGB: |
| DEBUG_TEX(("GL_RGB\n")); |
| cmd |= TEX_COL_ARGB1555; |
| break; |
| case GL_LUMINANCE: |
| DEBUG_TEX(("GL_LUMINANCE\n")); |
| cmd |= TEX_COL_ARGB4444; |
| alpha = 1; /* FIXME: check */ |
| break; |
| case GL_ALPHA: |
| DEBUG_TEX(("GL_ALPHA\n")); |
| cmd |= TEX_COL_ARGB4444; |
| alpha = 1; |
| break; |
| case GL_LUMINANCE_ALPHA: |
| DEBUG_TEX(("GL_LUMINANCE_ALPHA\n")); |
| cmd |= TEX_COL_ARGB4444; |
| alpha = 1; |
| break; |
| case GL_INTENSITY: |
| DEBUG_TEX(("GL_INTENSITY\n")); |
| cmd |= TEX_COL_ARGB4444; |
| alpha = 1; |
| break; |
| case GL_RGBA: |
| DEBUG_TEX(("GL_RGBA\n")); |
| cmd |= TEX_COL_ARGB4444; |
| alpha = 1; |
| break; |
| case GL_COLOR_INDEX: |
| DEBUG_TEX(("GL_COLOR_INDEX\n")); |
| cmd |= TEX_COL_PAL; |
| break; |
| } |
| |
| DEBUG_TEX(("EnvMode = ")); |
| |
| switch (texUnit->EnvMode) { |
| case GL_REPLACE: |
| DEBUG_TEX(("GL_REPLACE\n")); |
| cmd |= TEX_REFLECT; /* FIXME */ |
| vmesa->_tri[1] = DO_TEX_UNLIT_TRI; /* FIXME: white tri hack */ |
| vmesa->_alpha_tex = ALPHA_TEX /* * alpha */; |
| break; |
| case GL_MODULATE: |
| DEBUG_TEX(("GL_MODULATE\n")); |
| cmd |= TEX_MODULATE; |
| vmesa->_tri[1] = DO_TEX_LIT_TRI; |
| #if 0 |
| if (alpha) |
| vmesa->_alpha_tex = ALPHA_TEX /* * alpha */; |
| else |
| vmesa->_alpha_tex = ALPHA_SRC /* * alpha */; |
| #else |
| vmesa->_alpha_tex = ALPHA_TEX ; |
| #endif |
| break; |
| case GL_ADD: |
| DEBUG_TEX(("DEBUG_TEX\n")); |
| /* do nothing ???*/ |
| break; |
| case GL_DECAL: |
| DEBUG_TEX(("GL_DECAL\n")); |
| cmd |= TEX_DECAL; |
| vmesa->_tri[1] = DO_TEX_LIT_TRI; |
| vmesa->_alpha_tex = ALPHA_OFF; |
| break; |
| case GL_BLEND: |
| DEBUG_TEX(("GL_BLEND\n")); |
| cmd |= TEX_DECAL; |
| vmesa->_tri[1] = DO_TEX_LIT_TRI; |
| vmesa->_alpha_tex = ALPHA_OFF; /* FIXME: sure? */ |
| break; |
| default: |
| fprintf(stderr, "unknown tex env mode"); |
| return; |
| } |
| |
| DEBUG_TEX(("\n\n vmesa->CMD was 0x%x\n", vmesa->CMD)); |
| DEBUG_TEX(( " vmesa->CMD is 0x%x\n\n", cmd )); |
| |
| vmesa->_alpha[1] = vmesa->_alpha_tex; |
| vmesa->CMD = cmd; /* | MIPMAP_LEVEL(8); */ |
| vmesa->restore_primitive = -1; |
| } |
| |
| static void s3vUpdateTexUnit( GLcontext *ctx, GLuint unit ) |
| { |
| s3vContextPtr vmesa = S3V_CONTEXT(ctx); |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; |
| GLuint cmd = vmesa->CMD; |
| #if TEX_DEBUG_ON |
| static unsigned int times=0; |
| DEBUG_TEX(("*** s3vUpdateTexUnit: %i ***\n", ++times)); |
| DEBUG_TEX(("and vmesa->CMD was 0x%x\n", vmesa->CMD)); |
| #endif |
| |
| if (texUnit->_ReallyEnabled == TEXTURE_2D_BIT) |
| { |
| struct gl_texture_object *tObj = texUnit->_Current; |
| s3vTextureObjectPtr t = (s3vTextureObjectPtr)tObj->DriverData; |
| |
| /* Upload teximages (not pipelined) |
| */ |
| if (t->dirty_images) { |
| #if _TEXFLUSH |
| DMAFLUSH(); |
| #endif |
| s3vSetTexImages( vmesa, tObj ); |
| if (!t->MemBlock) { |
| #if _TEXFALLBACK |
| FALLBACK( vmesa, S3V_FALLBACK_TEXTURE, GL_TRUE ); |
| #endif |
| return; |
| } |
| } |
| |
| /* Update state if this is a different texture object to last |
| * time. |
| */ |
| #if 1 |
| if (vmesa->CurrentTexObj[unit] != t) { |
| vmesa->dirty |= S3V_UPLOAD_TEX0 /* << unit */; |
| vmesa->CurrentTexObj[unit] = t; |
| s3vUpdateTexLRU( vmesa, t ); /* done too often */ |
| } |
| #endif |
| |
| /* Update texture environment if texture object image format or |
| * texture environment state has changed. |
| */ |
| if (tObj->Image[0][tObj->BaseLevel]->_BaseFormat != |
| vmesa->TexEnvImageFmt[unit]) { |
| vmesa->TexEnvImageFmt[unit] = tObj->Image[0][tObj->BaseLevel]->_BaseFormat; |
| s3vUpdateTexEnv( ctx, unit ); |
| } |
| #if 1 |
| cmd = vmesa->CMD & ~MIP_MASK; |
| vmesa->dirty |= S3V_UPLOAD_TEX0 /* << unit */; |
| vmesa->CurrentTexObj[unit] = t; |
| vmesa->TexOffset = t->TextureBaseAddr[tObj->BaseLevel]; |
| vmesa->TexStride = t->Pitch; |
| cmd |= MIPMAP_LEVEL(t->WidthLog2); |
| |
| DEBUG_TEX(("\n\n>> vmesa->CMD was 0x%x\n", vmesa->CMD)); |
| DEBUG_TEX(( ">> vmesa->CMD is 0x%x\n\n", cmd )); |
| DEBUG_TEX(("t->WidthLog2 = %i\n", t->WidthLog2)); |
| DEBUG_TEX(("MIPMAP_LEVEL(t->WidthLog2) = 0x%x\n", MIPMAP_LEVEL(t->WidthLog2))); |
| |
| vmesa->CMD = cmd; |
| vmesa->restore_primitive = -1; |
| #endif |
| } |
| else if (texUnit->_ReallyEnabled) { /* _ReallyEnabled but != TEXTURE0_2D */ |
| #if _TEXFALLBACK |
| FALLBACK( vmesa, S3V_FALLBACK_TEXTURE, GL_TRUE ); |
| #endif |
| } |
| else /*if (vmesa->CurrentTexObj[unit])*/ { /* !_ReallyEnabled */ |
| vmesa->CurrentTexObj[unit] = 0; |
| vmesa->TexEnvImageFmt[unit] = 0; |
| vmesa->dirty &= ~(S3V_UPLOAD_TEX0<<unit); |
| } |
| } |
| |
| |
| void s3vUpdateTextureState( GLcontext *ctx ) |
| { |
| s3vContextPtr vmesa = S3V_CONTEXT(ctx); |
| (void) vmesa; |
| #if TEX_DEBUG_ON |
| static unsigned int times=0; |
| DEBUG_TEX(("*** s3vUpdateTextureState: #%i ***\n", ++times)); |
| #endif |
| |
| #if _TEXFALLBACK |
| FALLBACK( vmesa, S3V_FALLBACK_TEXTURE, GL_FALSE ); |
| #endif |
| s3vUpdateTexUnit( ctx, 0 ); |
| #if 0 |
| s3vUpdateTexUnit( ctx, 1 ); |
| #endif |
| } |