diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_metaops.c')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_metaops.c | 97 |
1 files changed, 94 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_metaops.c b/src/mesa/drivers/dri/i965/brw_metaops.c index 2d4c84f612..1728fc8f56 100644 --- a/src/mesa/drivers/dri/i965/brw_metaops.c +++ b/src/mesa/drivers/dri/i965/brw_metaops.c @@ -27,6 +27,7 @@ /* * Authors: * Keith Whitwell <keith@tungstengraphics.com> + * frame buffer texture by Gary Wong <gtw@gnu.org> */ @@ -143,6 +144,15 @@ static const char *fp_prog = "MOV result.color, fragment.color;\n" "END\n"; +static const char *fp_tex_prog = + "!!ARBfp1.0\n" + "TEMP a;\n" + "ADD a, fragment.position, program.local[0];\n" + "MUL a, a, program.local[1];\n" + "TEX result.color, a, texture[0], 2D;\n" + "MOV result.depth.z, fragment.position;\n" + "END\n"; + /* Derived values of importance: * * FragmentProgram->_Current @@ -169,6 +179,9 @@ static void init_metaops_state( struct brw_context *brw ) brw->metaops.fp = (struct gl_fragment_program *) ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 1 ); + brw->metaops.fp_tex = (struct gl_fragment_program *) + ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 1 ); + brw->metaops.vp = (struct gl_vertex_program *) ctx->Driver.NewProgram(ctx, GL_VERTEX_PROGRAM_ARB, 1 ); @@ -176,6 +189,10 @@ static void init_metaops_state( struct brw_context *brw ) fp_prog, strlen(fp_prog), brw->metaops.fp); + _mesa_parse_arb_fragment_program(ctx, GL_FRAGMENT_PROGRAM_ARB, + fp_tex_prog, strlen(fp_tex_prog), + brw->metaops.fp_tex); + _mesa_parse_arb_vertex_program(ctx, GL_VERTEX_PROGRAM_ARB, vp_prog, strlen(vp_prog), brw->metaops.vp); @@ -266,7 +283,76 @@ static void meta_color_mask( struct intel_context *intel, GLboolean state ) static void meta_no_texture( struct intel_context *intel ) { - /* Nothing to do */ + struct brw_context *brw = brw_context(&intel->ctx); + + brw->metaops.attribs.FragmentProgram->_Current = brw->metaops.fp; + + brw->metaops.attribs.Texture->CurrentUnit = 0; + brw->metaops.attribs.Texture->_EnabledUnits = 0; + brw->metaops.attribs.Texture->_EnabledCoordUnits = 0; + brw->metaops.attribs.Texture->Unit[ 0 ].Enabled = 0; + brw->metaops.attribs.Texture->Unit[ 0 ]._ReallyEnabled = 0; + + brw->state.dirty.mesa |= _NEW_TEXTURE | _NEW_PROGRAM; +} + +static void meta_texture_blend_replace(struct intel_context *intel) +{ + struct brw_context *brw = brw_context(&intel->ctx); + + brw->metaops.attribs.Texture->CurrentUnit = 0; + brw->metaops.attribs.Texture->_EnabledUnits = 1; + brw->metaops.attribs.Texture->_EnabledCoordUnits = 1; + brw->metaops.attribs.Texture->Unit[ 0 ].Enabled = TEXTURE_2D_BIT; + brw->metaops.attribs.Texture->Unit[ 0 ]._ReallyEnabled = TEXTURE_2D_BIT; + brw->metaops.attribs.Texture->Unit[ 0 ].Current2D = + intel->frame_buffer_texobj; + brw->metaops.attribs.Texture->Unit[ 0 ]._Current = + intel->frame_buffer_texobj; + + brw->state.dirty.mesa |= _NEW_TEXTURE | _NEW_PROGRAM; +} + +static void meta_import_pixel_state(struct intel_context *intel) +{ + struct brw_context *brw = brw_context(&intel->ctx); + + RESTORE(brw, Color, _NEW_COLOR); + RESTORE(brw, Depth, _NEW_DEPTH); + RESTORE(brw, Fog, _NEW_FOG); + RESTORE(brw, Scissor, _NEW_SCISSOR); + RESTORE(brw, Stencil, _NEW_STENCIL); + RESTORE(brw, Texture, _NEW_TEXTURE); + RESTORE(brw, FragmentProgram, _NEW_PROGRAM); +} + +static void meta_frame_buffer_texture( struct intel_context *intel, + GLint xoff, GLint yoff ) +{ + struct brw_context *brw = brw_context(&intel->ctx); + struct intel_region *region = intel_drawbuf_region( intel ); + + INSTALL(brw, FragmentProgram, _NEW_PROGRAM); + + brw->metaops.attribs.FragmentProgram->_Current = brw->metaops.fp_tex; + /* This is unfortunate, but seems to be necessary, since later on we + will end up calling _mesa_load_state_parameters to lookup the + local params (below), and that will want to look in ctx.FragmentProgram + instead of brw->attribs.FragmentProgram. */ + intel->ctx.FragmentProgram.Current = brw->metaops.fp_tex; + + brw->metaops.fp_tex->Base.LocalParams[ 0 ][ 0 ] = xoff; + brw->metaops.fp_tex->Base.LocalParams[ 0 ][ 1 ] = yoff; + brw->metaops.fp_tex->Base.LocalParams[ 0 ][ 2 ] = 0.0; + brw->metaops.fp_tex->Base.LocalParams[ 0 ][ 3 ] = 0.0; + brw->metaops.fp_tex->Base.LocalParams[ 1 ][ 0 ] = + 1.0 / region->pitch; + brw->metaops.fp_tex->Base.LocalParams[ 1 ][ 1 ] = + -1.0 / region->height; + brw->metaops.fp_tex->Base.LocalParams[ 1 ][ 2 ] = 0.0; + brw->metaops.fp_tex->Base.LocalParams[ 1 ][ 3 ] = 1.0; + + brw->state.dirty.mesa |= _NEW_PROGRAM; } @@ -408,9 +494,11 @@ static void install_meta_state( struct intel_context *intel ) } install_attribs(brw); + meta_no_texture(&brw->intel); meta_flat_shade(&brw->intel); brw->metaops.restore_draw_mask = ctx->DrawBuffer->_ColorDrawBufferMask[0]; + brw->metaops.restore_fp = ctx->FragmentProgram.Current; /* This works without adjusting refcounts. Fix later? */ @@ -429,6 +517,7 @@ static void leave_meta_state( struct intel_context *intel ) restore_attribs(brw); ctx->DrawBuffer->_ColorDrawBufferMask[0] = brw->metaops.restore_draw_mask; + ctx->FragmentProgram.Current = brw->metaops.restore_fp; brw->state.draw_region = brw->metaops.saved_draw_region; brw->state.depth_region = brw->metaops.saved_depth_region; @@ -455,10 +544,11 @@ void brw_init_metaops( struct brw_context *brw ) brw->intel.vtbl.meta_depth_replace = meta_depth_replace; brw->intel.vtbl.meta_color_mask = meta_color_mask; brw->intel.vtbl.meta_no_texture = meta_no_texture; + brw->intel.vtbl.meta_import_pixel_state = meta_import_pixel_state; + brw->intel.vtbl.meta_frame_buffer_texture = meta_frame_buffer_texture; brw->intel.vtbl.meta_draw_region = meta_draw_region; brw->intel.vtbl.meta_draw_quad = meta_draw_quad; - -/* brw->intel.vtbl.meta_texture_blend_replace = meta_texture_blend_replace; */ + brw->intel.vtbl.meta_texture_blend_replace = meta_texture_blend_replace; /* brw->intel.vtbl.meta_tex_rect_source = meta_tex_rect_source; */ /* brw->intel.vtbl.meta_draw_format = set_draw_format; */ } @@ -471,5 +561,6 @@ void brw_destroy_metaops( struct brw_context *brw ) ctx->Driver.DeleteBuffer( ctx, brw->metaops.vbo ); /* ctx->Driver.DeleteProgram( ctx, brw->metaops.fp ); */ +/* ctx->Driver.DeleteProgram( ctx, brw->metaops.fp_tex ); */ /* ctx->Driver.DeleteProgram( ctx, brw->metaops.vp ); */ } |