diff options
author | Eric Anholt <eric@anholt.net> | 2010-05-25 11:45:05 -0700 |
---|---|---|
committer | Eric Anholt <eric@anholt.net> | 2010-06-10 00:40:00 -0700 |
commit | 638342858894293246400d95a90d153c7f66719a (patch) | |
tree | 63ae5ef53ba48a4a9202726df65a433cb0a90fa9 /src/mesa/drivers | |
parent | 262cdbd957b68878adf1fb3edcf478604ed9f171 (diff) |
i965: Add support for GL_ALPHA framebuffer objects.
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r-- | src/mesa/drivers/dri/common/spantmp2.h | 32 | ||||
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_surface_state.c | 3 | ||||
-rw-r--r-- | src/mesa/drivers/dri/intel/intel_blit.c | 39 | ||||
-rw-r--r-- | src/mesa/drivers/dri/intel/intel_fbo.c | 14 | ||||
-rw-r--r-- | src/mesa/drivers/dri/intel/intel_reg.h | 1 | ||||
-rw-r--r-- | src/mesa/drivers/dri/intel/intel_span.c | 10 |
6 files changed, 85 insertions, 14 deletions
diff --git a/src/mesa/drivers/dri/common/spantmp2.h b/src/mesa/drivers/dri/common/spantmp2.h index 98422a8564..1dab7336b9 100644 --- a/src/mesa/drivers/dri/common/spantmp2.h +++ b/src/mesa/drivers/dri/common/spantmp2.h @@ -413,6 +413,38 @@ } while (0) # endif +#elif (SPANTMP_PIXEL_FMT == GL_ALPHA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_BYTE) + +/** + ** GL_ALPHA, GL_UNSIGNED_BYTE + **/ + +#ifndef GET_VALUE +#ifndef GET_PTR +#define GET_PTR(_x, _y) ( buf + (_x) + (_y) * pitch) +#endif + +#define GET_VALUE(_x, _y) *(volatile GLubyte *)(GET_PTR(_x, _y)) +#define PUT_VALUE(_x, _y, _v) *(volatile GLubyte *)(GET_PTR(_x, _y)) = (_v) +#endif /* GET_VALUE */ + +# define INIT_MONO_PIXEL(p, color) \ + p = color[3] + +# define WRITE_RGBA(_x, _y, r, g, b, a) \ + PUT_VALUE(_x, _y, a | (r & 0 /* quiet warnings */)) + +#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p) + +#define READ_RGBA( rgba, _x, _y ) \ + do { \ + GLubyte p = GET_VALUE(_x, _y); \ + rgba[0] = 0; \ + rgba[1] = 0; \ + rgba[2] = 0; \ + rgba[3] = p; \ + } while (0) + #else #error SPANTMP_PIXEL_FMT must be set to a valid value! #endif diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c index a9ad2ce371..3998054eb4 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c +++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c @@ -515,6 +515,9 @@ brw_update_renderbuffer_surface(struct brw_context *brw, case MESA_FORMAT_ARGB4444: key.surface_format = BRW_SURFACEFORMAT_B4G4R4A4_UNORM; break; + case MESA_FORMAT_A8: + key.surface_format = BRW_SURFACEFORMAT_A8_UNORM; + break; default: _mesa_problem(ctx, "Bad renderbuffer format: %d\n", irb->Base.Format); } diff --git a/src/mesa/drivers/dri/intel/intel_blit.c b/src/mesa/drivers/dri/intel/intel_blit.c index fecf12763e..2c85ad3c36 100644 --- a/src/mesa/drivers/dri/intel/intel_blit.c +++ b/src/mesa/drivers/dri/intel/intel_blit.c @@ -64,6 +64,24 @@ static GLuint translate_raster_op(GLenum logicop) } } +static uint32_t +br13_for_cpp(int cpp) +{ + switch (cpp) { + case 4: + return BR13_8888; + break; + case 2: + return BR13_565; + break; + case 1: + return BR13_8; + break; + default: + assert(0); + return 0; + } +} /* Copy BitBlt */ @@ -131,18 +149,14 @@ intelEmitCopyBlit(struct intel_context *intel, src_pitch *= cpp; dst_pitch *= cpp; - BR13 = translate_raster_op(logic_op) << 16; + BR13 = br13_for_cpp(cpp) | translate_raster_op(logic_op) << 16; switch (cpp) { case 1: - CMD = XY_SRC_COPY_BLT_CMD; - break; case 2: - BR13 |= BR13_565; CMD = XY_SRC_COPY_BLT_CMD; break; case 4: - BR13 |= BR13_8888; CMD = XY_SRC_COPY_BLT_CMD | XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB; break; default: @@ -265,12 +279,11 @@ intelClearWithBlit(GLcontext *ctx, GLbitfield mask) irb->region->buffer, (pitch * cpp), x1, y1, x2 - x1, y2 - y1); - BR13 = 0xf0 << 16; + BR13 = br13_for_cpp(cpp) | 0xf0 << 16; CMD = XY_COLOR_BLT_CMD; /* Setup the blit command */ if (cpp == 4) { - BR13 |= BR13_8888; if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL) { if (mask & BUFFER_BIT_DEPTH) CMD |= XY_BLT_WRITE_RGB; @@ -280,9 +293,6 @@ intelClearWithBlit(GLcontext *ctx, GLbitfield mask) /* clearing RGBA */ CMD |= XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB; } - } else { - ASSERT(cpp == 2); - BR13 |= BR13_565; } assert(irb->region->tiling != I915_TILING_Y); @@ -323,6 +333,10 @@ intelClearWithBlit(GLcontext *ctx, GLbitfield mask) clear_val = PACK_COLOR_1555(clear[3], clear[0], clear[1], clear[2]); break; + case MESA_FORMAT_A8: + clear_val = PACK_COLOR_8888(clear[3], clear[3], + clear[3], clear[3]); + break; default: _mesa_problem(ctx, "Unexpected renderbuffer format: %d\n", irb->Base.Format); @@ -419,10 +433,7 @@ intelEmitImmediateColorExpandBlit(struct intel_context *intel, #endif br13 = dst_pitch | (translate_raster_op(logic_op) << 16) | (1 << 29); - if (cpp == 2) - br13 |= BR13_565; - else - br13 |= BR13_8888; + br13 |= br13_for_cpp(cpp); blit_cmd = XY_TEXT_IMMEDIATE_BLIT_CMD | XY_TEXT_BYTE_PACKED; /* packing? */ if (dst_tiling != I915_TILING_NONE) diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c index 217be7ef6c..8f61f1f5b2 100644 --- a/src/mesa/drivers/dri/intel/intel_fbo.c +++ b/src/mesa/drivers/dri/intel/intel_fbo.c @@ -135,6 +135,11 @@ intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb, rb->Format = MESA_FORMAT_ARGB8888; rb->DataType = GL_UNSIGNED_BYTE; break; + case GL_ALPHA: + case GL_ALPHA8: + rb->Format = MESA_FORMAT_A8; + rb->DataType = GL_UNSIGNED_BYTE; + break; case GL_STENCIL_INDEX: case GL_STENCIL_INDEX1_EXT: case GL_STENCIL_INDEX4_EXT: @@ -346,6 +351,10 @@ intel_create_renderbuffer(gl_format format) irb->Base._BaseFormat = GL_DEPTH_STENCIL; irb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT; break; + case MESA_FORMAT_A8: + irb->Base._BaseFormat = GL_ALPHA; + irb->Base.DataType = GL_UNSIGNED_BYTE; + break; default: _mesa_problem(NULL, "Unexpected intFormat in intel_create_renderbuffer"); @@ -451,6 +460,10 @@ intel_update_wrapper(GLcontext *ctx, struct intel_renderbuffer *irb, irb->Base.DataType = GL_UNSIGNED_BYTE; DBG("Render to ARGB4444 texture OK\n"); } + else if (texImage->TexFormat == MESA_FORMAT_A8) { + irb->Base.DataType = GL_UNSIGNED_BYTE; + DBG("Render to A8 texture OK\n"); + } else if (texImage->TexFormat == MESA_FORMAT_Z16) { irb->Base.DataType = GL_UNSIGNED_SHORT; DBG("Render to DEPTH16 texture OK\n"); @@ -660,6 +673,7 @@ intel_validate_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb) case MESA_FORMAT_RGB565: case MESA_FORMAT_ARGB1555: case MESA_FORMAT_ARGB4444: + case MESA_FORMAT_A8: break; default: fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; diff --git a/src/mesa/drivers/dri/intel/intel_reg.h b/src/mesa/drivers/dri/intel/intel_reg.h index 36d8180598..c1a281f261 100644 --- a/src/mesa/drivers/dri/intel/intel_reg.h +++ b/src/mesa/drivers/dri/intel/intel_reg.h @@ -239,6 +239,7 @@ #define XY_DST_TILED (1 << 11) /* BR13 */ +#define BR13_8 (0x0 << 24) #define BR13_565 (0x1 << 24) #define BR13_8888 (0x3 << 24) diff --git a/src/mesa/drivers/dri/intel/intel_span.c b/src/mesa/drivers/dri/intel/intel_span.c index 059f76f289..c30552c5a7 100644 --- a/src/mesa/drivers/dri/intel/intel_span.c +++ b/src/mesa/drivers/dri/intel/intel_span.c @@ -106,6 +106,13 @@ intel_set_span_functions(struct intel_context *intel, #define TAG2(x,y) intel_##x##y##_xRGB8888 #include "spantmp2.h" +/* a8 color span and pixel functions */ +#define SPANTMP_PIXEL_FMT GL_ALPHA +#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_BYTE +#define TAG(x) intel_##x##_A8 +#define TAG2(x,y) intel_##x##y##_A8 +#include "spantmp2.h" + #define LOCAL_DEPTH_VARS \ struct intel_renderbuffer *irb = intel_renderbuffer(rb); \ const GLint yScale = rb->Name ? 1 : -1; \ @@ -341,6 +348,9 @@ intel_set_span_functions(struct intel_context *intel, struct intel_renderbuffer *irb = (struct intel_renderbuffer *) rb; switch (irb->Base.Format) { + case MESA_FORMAT_A8: + intel_InitPointers_A8(rb); + break; case MESA_FORMAT_RGB565: intel_InitPointers_RGB565(rb); break; |