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wined3d: Implement depth bias clamp.
Based on a patch by Michael Müller. Signed-off-by: Zebediah Figura <z.figura12@gmail.com> Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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55d4f63164
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@ -1081,6 +1081,7 @@ static HRESULT d3d_rasterizer_state_init(struct d3d_rasterizer_state *state, str
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wined3d_desc.front_ccw = desc->FrontCounterClockwise;
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wined3d_desc.depth_clip = desc->DepthClipEnable;
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wined3d_desc.depth_bias_clamp = desc->DepthBiasClamp;
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/* We cannot fail after creating a wined3d_rasterizer_state object. It
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* would lead to double free. */
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@ -103,6 +103,7 @@ static const struct wined3d_extension_map gl_extension_map[] =
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{"GL_ARB_pixel_buffer_object", ARB_PIXEL_BUFFER_OBJECT },
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{"GL_ARB_point_parameters", ARB_POINT_PARAMETERS },
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{"GL_ARB_point_sprite", ARB_POINT_SPRITE },
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{"GL_ARB_polygon_offset_clamp", ARB_POLYGON_OFFSET_CLAMP },
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{"GL_ARB_provoking_vertex", ARB_PROVOKING_VERTEX },
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{"GL_ARB_query_buffer_object", ARB_QUERY_BUFFER_OBJECT },
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{"GL_ARB_sample_shading", ARB_SAMPLE_SHADING },
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@ -1254,7 +1255,9 @@ static enum wined3d_feature_level feature_level_from_caps(const struct wined3d_g
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shader_model = min(shader_model, max(shader_caps->hs_version, 4));
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shader_model = min(shader_model, max(shader_caps->ds_version, 4));
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if (gl_info->supported[WINED3D_GL_VERSION_3_2] && gl_info->supported[ARB_SAMPLER_OBJECTS])
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if (gl_info->supported[WINED3D_GL_VERSION_3_2]
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&& gl_info->supported[ARB_POLYGON_OFFSET_CLAMP]
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&& gl_info->supported[ARB_SAMPLER_OBJECTS])
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{
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if (shader_model >= 5
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&& gl_info->supported[ARB_DRAW_INDIRECT]
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@ -2172,6 +2175,8 @@ static void load_gl_funcs(struct wined3d_gl_info *gl_info)
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/* GL_ARB_point_parameters */
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USE_GL_FUNC(glPointParameterfARB)
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USE_GL_FUNC(glPointParameterfvARB)
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/* GL_ARB_polgyon_offset_clamp */
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USE_GL_FUNC(glPolygonOffsetClamp)
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/* GL_ARB_provoking_vertex */
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USE_GL_FUNC(glProvokingVertex)
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/* GL_ARB_sample_shading */
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@ -3316,6 +3321,7 @@ static BOOL wined3d_adapter_init_gl_caps(struct wined3d_adapter *adapter,
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{ARB_SHADER_TEXTURE_IMAGE_SAMPLES, MAKEDWORD_VERSION(4, 5)},
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{ARB_PIPELINE_STATISTICS_QUERY, MAKEDWORD_VERSION(4, 6)},
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{ARB_POLYGON_OFFSET_CLAMP, MAKEDWORD_VERSION(4, 6)},
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{ARB_TEXTURE_FILTER_ANISOTROPIC, MAKEDWORD_VERSION(4, 6)},
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};
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struct wined3d_driver_info *driver_info = &adapter->driver_info;
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@ -1775,7 +1775,7 @@ static void state_depthbias(struct wined3d_context *context, const struct wined3
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|| state->render_states[WINED3D_RS_DEPTHBIAS])
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{
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const struct wined3d_rendertarget_view *depth = state->fb->depth_stencil;
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float factor, units, scale;
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float factor, units, scale, clamp;
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union
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{
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@ -1783,6 +1783,7 @@ static void state_depthbias(struct wined3d_context *context, const struct wined3
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float f;
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} scale_bias, const_bias;
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clamp = state->rasterizer_state ? state->rasterizer_state->desc.depth_bias_clamp : 0.0f;
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scale_bias.d = state->render_states[WINED3D_RS_SLOPESCALEDEPTHBIAS];
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const_bias.d = state->render_states[WINED3D_RS_DEPTHBIAS];
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@ -1811,7 +1812,16 @@ static void state_depthbias(struct wined3d_context *context, const struct wined3
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}
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gl_info->gl_ops.gl.p_glEnable(GL_POLYGON_OFFSET_FILL);
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gl_info->gl_ops.gl.p_glPolygonOffset(factor, units);
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if (gl_info->supported[ARB_POLYGON_OFFSET_CLAMP])
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{
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gl_info->gl_ops.ext.p_glPolygonOffsetClamp(factor, units, clamp);
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}
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else
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{
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if (clamp != 0.0f)
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WARN("Ignoring depth bias clamp %.8e.\n", clamp);
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gl_info->gl_ops.gl.p_glPolygonOffset(factor, units);
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}
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}
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else
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{
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@ -4345,6 +4355,8 @@ static void rasterizer(struct wined3d_context *context, const struct wined3d_sta
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gl_info->gl_ops.gl.p_glFrontFace(mode);
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checkGLcall("glFrontFace");
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if (!isStateDirty(context, STATE_RENDER(WINED3D_RS_DEPTHBIAS)))
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state_depthbias(context, state, STATE_RENDER(WINED3D_RS_DEPTHBIAS));
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depth_clip(state->rasterizer_state, gl_info);
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}
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@ -4357,6 +4369,8 @@ static void rasterizer_cc(struct wined3d_context *context, const struct wined3d_
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gl_info->gl_ops.gl.p_glFrontFace(mode);
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checkGLcall("glFrontFace");
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if (!isStateDirty(context, STATE_RENDER(WINED3D_RS_DEPTHBIAS)))
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state_depthbias(context, state, STATE_RENDER(WINED3D_RS_DEPTHBIAS));
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depth_clip(state->rasterizer_state, gl_info);
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}
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@ -89,6 +89,7 @@ enum wined3d_gl_extension
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ARB_PIXEL_BUFFER_OBJECT,
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ARB_POINT_PARAMETERS,
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ARB_POINT_SPRITE,
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ARB_POLYGON_OFFSET_CLAMP,
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ARB_PROVOKING_VERTEX,
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ARB_QUERY_BUFFER_OBJECT,
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ARB_SAMPLE_SHADING,
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@ -2012,6 +2012,7 @@ struct wined3d_blend_state_desc
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struct wined3d_rasterizer_state_desc
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{
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BOOL front_ccw;
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float depth_bias_clamp;
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BOOL depth_clip;
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};
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