wined3d: Implement texldd.

GL_ARB_shader_texture is supported on dx9 ATI cards(and probably dx10 ones too). For Nvidia cards I included a fallback to normal texld. GL_EXT_gpu_shader4 supports similar texture*Grad GLSL functions, just with an EXT prefix instead of ARB. For dx9 NV cards we'd have to use GL_NV_fragment_program2, which supports a texldd equivalent on those cards.

wined3d: Implement texldd.
f5e24f7a · Stefan Dösinger · Alexandre Julliard · e7537418 · f5e24f7a · f5e24f7a
Commit f5e24f7a authored May 03, 2009 by Stefan Dösinger Committed by Alexandre Julliard May 05, 2009
5 changed files
--- a/dlls/wined3d/baseshader.c
+++ b/dlls/wined3d/baseshader.c
@@ -570,6 +570,10 @@ HRESULT shader_get_registers_used(IWineD3DBaseShader *iface, const struct wined3
            {
                reg_maps->usesdsy = 1;
            }
+            else if(ins.handler_idx == WINED3DSIH_TEXLDD)
+            {
+                reg_maps->usestexldd = 1;
+            }

            limit = ins.src_count + (ins.predicate ? 1 : 0);
            for (i = 0; i < limit; ++i)

--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -91,6 +91,7 @@ static const struct {
    {"GL_ARB_vertex_program",               ARB_VERTEX_PROGRAM,             0                           },
    {"GL_ARB_vertex_shader",                ARB_VERTEX_SHADER,              0                           },
    {"GL_ARB_shader_objects",               ARB_SHADER_OBJECTS,             0                           },
+    {"GL_ARB_shader_texture_lod",           ARB_SHADER_TEXTURE_LOD,         0                           },

    /* EXT */
    {"GL_EXT_blend_color",                  EXT_BLEND_COLOR,                0                           },

--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
--- a/dlls/wined3d/wined3d_gl.h
+++ b/dlls/wined3d/wined3d_gl.h
@@ -3397,6 +3397,7 @@ typedef enum _GL_SupportedExt {
  ARB_VERTEX_BUFFER_OBJECT,
  ARB_VERTEX_SHADER,
  ARB_SHADER_OBJECTS,
+  ARB_SHADER_TEXTURE_LOD,
  /* EXT */
  EXT_BLEND_COLOR,
  EXT_BLEND_MINMAX,

--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -610,7 +610,7 @@ typedef struct shader_reg_maps

    WINED3DSAMPLER_TEXTURE_TYPE sampler_type[max(MAX_FRAGMENT_SAMPLERS, MAX_VERTEX_SAMPLERS)];
    BOOL bumpmat[MAX_TEXTURES], luminanceparams[MAX_TEXTURES];
-    char usesnrm, vpos, usesdsy;
+    char usesnrm, vpos, usesdsy, usestexldd;
    char usesrelconstF;

    /* Whether or not loops are used in this shader, and nesting depth */