X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Ftexenvprogram.c;h=4647a9c440549c2a9cc20215cabda87fcd3ab5df;hb=cd6a31cd4a9ea6deef4778c2eaef2d47240c3a6e;hp=5cc5fdaebd1bba60cda3fe01cafce23b836d5dc3;hpb=4a9f1eed2ba02f2ae2bf92d16f89d10f09b2a21e;p=mesa.git

diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c
index 5cc5fdaebd1..4647a9c4405 100644
--- a/src/mesa/main/texenvprogram.c
+++ b/src/mesa/main/texenvprogram.c
@@ -28,13 +28,13 @@
 
 #include "glheader.h"
 #include "imports.h"
-#include "shader/program.h"
-#include "shader/prog_parameter.h"
-#include "shader/prog_cache.h"
-#include "shader/prog_instruction.h"
-#include "shader/prog_print.h"
-#include "shader/prog_statevars.h"
-#include "shader/programopt.h"
+#include "program/program.h"
+#include "program/prog_parameter.h"
+#include "program/prog_cache.h"
+#include "program/prog_instruction.h"
+#include "program/prog_print.h"
+#include "program/prog_statevars.h"
+#include "program/programopt.h"
 #include "texenvprogram.h"
 
 
@@ -62,7 +62,7 @@ struct texenvprog_cache_item
 };
 
 static GLboolean
-texenv_doing_secondary_color(GLcontext *ctx)
+texenv_doing_secondary_color(struct gl_context *ctx)
 {
    if (ctx->Light.Enabled &&
        (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR))
@@ -98,6 +98,7 @@ struct state_key {
    GLuint fog_enabled:1;
    GLuint fog_mode:2;          /**< FOG_x */
    GLuint inputs_available:12;
+   GLuint num_draw_buffers:4;
 
    /* NOTE: This array of structs must be last! (see "keySize" below) */
    struct {
@@ -306,7 +307,7 @@ static GLuint translate_tex_src_bit( GLbitfield bit )
  * has access to.  The bitmask is later reduced to just those which
  * are actually referenced.
  */
-static GLbitfield get_fp_input_mask( GLcontext *ctx )
+static GLbitfield get_fp_input_mask( struct gl_context *ctx )
 {
    /* _NEW_PROGRAM */
    const GLboolean vertexShader = (ctx->Shader.CurrentProgram &&
@@ -406,7 +407,7 @@ static GLbitfield get_fp_input_mask( GLcontext *ctx )
  * Examine current texture environment state and generate a unique
  * key to identify it.
  */
-static GLuint make_state_key( GLcontext *ctx,  struct state_key *key )
+static GLuint make_state_key( struct gl_context *ctx,  struct state_key *key )
 {
    GLuint i, j;
    GLbitfield inputs_referenced = FRAG_BIT_COL0;
@@ -485,6 +486,9 @@ static GLuint make_state_key( GLcontext *ctx,  struct state_key *key )
       inputs_referenced |= FRAG_BIT_FOGC; /* maybe */
    }
 
+   /* _NEW_BUFFERS */
+   key->num_draw_buffers = ctx->DrawBuffer->_NumColorDrawBuffers;
+
    key->inputs_available = (inputs_available & inputs_referenced);
 
    /* compute size of state key, ignoring unused texture units */
@@ -659,7 +663,7 @@ static void reserve_temp( struct texenv_fragment_program *p, struct ureg r )
 }
 
 
-static void release_temps(GLcontext *ctx, struct texenv_fragment_program *p )
+static void release_temps(struct gl_context *ctx, struct texenv_fragment_program *p )
 {
    GLuint max_temp = ctx->Const.FragmentProgram.MaxTemps;
 
@@ -903,7 +907,7 @@ static struct ureg get_zero( struct texenv_fragment_program *p )
 
 static void program_error( struct texenv_fragment_program *p, const char *msg )
 {
-   _mesa_problem(NULL, msg);
+   _mesa_problem(NULL, "%s", msg);
    p->error = 1;
 }
 
@@ -1095,7 +1099,7 @@ static struct ureg emit_combine( struct texenv_fragment_program *p,
       emit_arith( p, OPCODE_MAD, tmp0, WRITEMASK_XYZW, 0, 
 		  two, src[0], neg1);
 
-      if (_mesa_memcmp(&src[0], &src[1], sizeof(struct ureg)) == 0)
+      if (memcmp(&src[0], &src[1], sizeof(struct ureg)) == 0)
 	 tmp1 = tmp0;
       else
 	 emit_arith( p, OPCODE_MAD, tmp1, WRITEMASK_XYZW, 0, 
@@ -1199,11 +1203,14 @@ emit_texenv(struct texenv_fragment_program *p, GLuint unit)
    else
       alpha_saturate = GL_FALSE;
 
-   /* If this is the very last calculation, emit direct to output reg:
+   /* If this is the very last calculation (and various other conditions
+    * are met), emit directly to the color output register.  Otherwise,
+    * emit to a temporary register.
     */
    if (key->separate_specular ||
        unit != p->last_tex_stage ||
        alpha_shift ||
+       key->num_draw_buffers != 1 ||
        rgb_shift)
       dest = get_temp( p );
    else
@@ -1408,15 +1415,16 @@ load_texunit_bumpmap( struct texenv_fragment_program *p, GLuint unit )
  * current texture env/combine mode.
  */
 static void
-create_new_program(GLcontext *ctx, struct state_key *key,
+create_new_program(struct gl_context *ctx, struct state_key *key,
                    struct gl_fragment_program *program)
 {
    struct prog_instruction instBuffer[MAX_INSTRUCTIONS];
    struct texenv_fragment_program p;
    GLuint unit;
    struct ureg cf, out;
+   int i;
 
-   _mesa_memset(&p, 0, sizeof(p));
+   memset(&p, 0, sizeof(p));
    p.state = key;
    p.program = program;
 
@@ -1436,7 +1444,13 @@ create_new_program(GLcontext *ctx, struct state_key *key,
    p.program->Base.NumAddressRegs = 0;
    p.program->Base.Parameters = _mesa_new_parameter_list();
    p.program->Base.InputsRead = 0x0;
-   p.program->Base.OutputsWritten = 1 << FRAG_RESULT_COLOR;
+
+   if (key->num_draw_buffers == 1)
+      p.program->Base.OutputsWritten = 1 << FRAG_RESULT_COLOR;
+   else {
+      for (i = 0; i < key->num_draw_buffers; i++)
+	 p.program->Base.OutputsWritten |= (1 << (FRAG_RESULT_DATA0 + i));
+   }
 
    for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
       p.src_texture[unit] = undef;
@@ -1485,28 +1499,34 @@ create_new_program(GLcontext *ctx, struct state_key *key,
    }
 
    cf = get_source( &p, SRC_PREVIOUS, 0 );
-   out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_COLOR );
 
-   if (key->separate_specular) {
-      /* Emit specular add.
-       */
-      struct ureg s = register_input(&p, FRAG_ATTRIB_COL1);
-      emit_arith( &p, OPCODE_ADD, out, WRITEMASK_XYZ, 0, cf, s, undef );
-      emit_arith( &p, OPCODE_MOV, out, WRITEMASK_W, 0, cf, undef, undef );
-   }
-   else if (_mesa_memcmp(&cf, &out, sizeof(cf)) != 0) {
-      /* Will wind up in here if no texture enabled or a couple of
-       * other scenarios (GL_REPLACE for instance).
-       */
-      emit_arith( &p, OPCODE_MOV, out, WRITEMASK_XYZW, 0, cf, undef, undef );
-   }
+   for (i = 0; i < key->num_draw_buffers; i++) {
+      if (key->num_draw_buffers == 1)
+	 out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_COLOR );
+      else {
+	 out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i );
+      }
 
+      if (key->separate_specular) {
+	 /* Emit specular add.
+	  */
+	 struct ureg s = register_input(&p, FRAG_ATTRIB_COL1);
+	 emit_arith( &p, OPCODE_ADD, out, WRITEMASK_XYZ, 0, cf, s, undef );
+	 emit_arith( &p, OPCODE_MOV, out, WRITEMASK_W, 0, cf, undef, undef );
+      }
+      else if (memcmp(&cf, &out, sizeof(cf)) != 0) {
+	 /* Will wind up in here if no texture enabled or a couple of
+	  * other scenarios (GL_REPLACE for instance).
+	  */
+	 emit_arith( &p, OPCODE_MOV, out, WRITEMASK_XYZW, 0, cf, undef, undef );
+      }
+   }
    /* Finish up:
     */
    emit_arith( &p, OPCODE_END, undef, WRITEMASK_XYZW, 0, undef, undef, undef);
 
    if (key->fog_enabled) {
-      /* Pull fog mode from GLcontext, the value in the state key is
+      /* Pull fog mode from struct gl_context, the value in the state key is
        * a reduced value and not what is expected in FogOption
        */
       p.program->FogOption = ctx->Fog.Mode;
@@ -1560,7 +1580,7 @@ create_new_program(GLcontext *ctx, struct state_key *key,
 
    if (DISASSEM) {
       _mesa_print_program(&p.program->Base);
-      _mesa_printf("\n");
+      printf("\n");
    }
 }
 
@@ -1570,7 +1590,7 @@ create_new_program(GLcontext *ctx, struct state_key *key,
  * fixed-function texture, fog and color-sum operations.
  */
 struct gl_fragment_program *
-_mesa_get_fixed_func_fragment_program(GLcontext *ctx)
+_mesa_get_fixed_func_fragment_program(struct gl_context *ctx)
 {
    struct gl_fragment_program *prog;
    struct state_key key;