diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_tex_image.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_tex_image.c b/src/mesa/drivers/dri/intel/intel_tex_image.c index 472a8e1f598..606523828b2 100644 --- a/src/mesa/drivers/dri/intel/intel_tex_image.c +++ b/src/mesa/drivers/dri/intel/intel_tex_image.c @@ -21,6 +21,7 @@ #include "intel_tex.h" #include "intel_blit.h" #include "intel_fbo.h" +#include "intel_span.h" #define FILE_DEBUG_FLAG DEBUG_TEXTURE @@ -277,6 +278,75 @@ try_pbo_zcopy(struct intel_context *intel, return GL_TRUE; } +/** + * \param scatter Scatter if true. Gather if false. + * + * \see intel_tex_image_x8z24_scatter + * \see intel_tex_image_x8z24_gather + */ +static void +intel_tex_image_s8z24_scattergather(struct intel_context *intel, + struct intel_texture_image *intel_image, + bool scatter) +{ + struct gl_context *ctx = &intel->ctx; + struct gl_renderbuffer *depth_rb = intel_image->depth_rb; + struct gl_renderbuffer *stencil_rb = intel_image->stencil_rb; + + int w = intel_image->base.Width; + int h = intel_image->base.Height; + + uint32_t depth_row[w]; + uint8_t stencil_row[w]; + + intel_renderbuffer_map(intel, depth_rb); + intel_renderbuffer_map(intel, stencil_rb); + + if (scatter) { + for (int y = 0; y < h; ++y) { + depth_rb->GetRow(ctx, depth_rb, w, 0, y, depth_row); + for (int x = 0; x < w; ++x) { + stencil_row[x] = depth_row[x] >> 24; + } + stencil_rb->PutRow(ctx, stencil_rb, w, 0, y, stencil_row, NULL); + } + } else { /* gather */ + for (int y = 0; y < h; ++y) { + depth_rb->GetRow(ctx, depth_rb, w, 0, y, depth_row); + stencil_rb->GetRow(ctx, stencil_rb, w, 0, y, stencil_row); + for (int x = 0; x < w; ++x) { + uint32_t s8_x24 = stencil_row[x] << 24; + uint32_t x8_z24 = depth_row[x] & 0x00ffffff; + depth_row[x] = s8_x24 | x8_z24; + } + depth_rb->PutRow(ctx, depth_rb, w, 0, y, depth_row, NULL); + } + } + + intel_renderbuffer_unmap(intel, depth_rb); + intel_renderbuffer_unmap(intel, stencil_rb); +} + +/** + * Copy the x8 bits from intel_image->depth_rb to intel_image->stencil_rb. + */ +static void +intel_tex_image_s8z24_scatter(struct intel_context *intel, + struct intel_texture_image *intel_image) +{ + intel_tex_image_s8z24_scattergather(intel, intel_image, true); +} + +/** + * Copy the data in intel_image->stencil_rb to the x8 bits in + * intel_image->depth_rb. + */ +static void +intel_tex_image_s8z24_gather(struct intel_context *intel, + struct intel_texture_image *intel_image) +{ + intel_tex_image_s8z24_scattergather(intel, intel_image, false); +} static void intelTexImage(struct gl_context * ctx, |