mesa: begin implementation of GL_ARB_draw_buffers_blend

[mesa.git] / src / mesa / main / mtypes.h

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 87b96489dbfab5af88d8b558d81512f27207241d..55c5fd2b84908c4ed27dd4bc5c75dcfd5ddda777 100644 (file)
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -40,14 +40,7 @@
 #include "glapi/glapi.h"
 #include "math/m_matrix.h"     /* GLmatrix */
 #include "main/simple_list.h"  /* struct simple_node */
-
-/* Shader stages. Note that these will become 5 with tessellation.
- * These MUST have the same values as PIPE_SHADER_*
- */
-#define MESA_SHADER_VERTEX   0
-#define MESA_SHADER_FRAGMENT 1
-#define MESA_SHADER_GEOMETRY 2
-#define MESA_SHADER_TYPES    3
+#include "main/formats.h"       /* MESA_FORMAT_COUNT */
 
 
 /**
@@ -129,6 +122,20 @@ struct st_context;
 
 
 
+/**
+ * Shader stages. Note that these will become 5 with tessellation.
+ * These MUST have the same values as gallium's PIPE_SHADER_*
+ */
+typedef enum
+{
+   MESA_SHADER_VERTEX = 0,
+   MESA_SHADER_FRAGMENT = 1,
+   MESA_SHADER_GEOMETRY = 2,
+   MESA_SHADER_TYPES = 3
+} gl_shader_type;
+
+
+
 /**
  * Indexes for vertex program attributes.
  * GL_NV_vertex_program aliases generic attributes over the conventional
@@ -712,13 +719,20 @@ struct gl_colorbuffer_attrib
     */
    /*@{*/
    GLbitfield BlendEnabled;            /**< Per-buffer blend enable flags */
-   GLenum BlendSrcRGB;                 /**< Blending source operator */
-   GLenum BlendDstRGB;                 /**< Blending destination operator */
-   GLenum BlendSrcA;                   /**< GL_INGR_blend_func_separate */
-   GLenum BlendDstA;                   /**< GL_INGR_blend_func_separate */
-   GLenum BlendEquationRGB;            /**< Blending equation */
-   GLenum BlendEquationA;              /**< GL_EXT_blend_equation_separate */
    GLfloat BlendColor[4];              /**< Blending color */
+   struct
+   {
+      GLenum SrcRGB;             /**< RGB blend source term */
+      GLenum DstRGB;             /**< RGB blend dest term */
+      GLenum SrcA;               /**< Alpha blend source term */
+      GLenum DstA;               /**< Alpha blend dest term */
+      GLenum EquationRGB;        /**< GL_ADD, GL_SUBTRACT, etc. */
+      GLenum EquationA;          /**< GL_ADD, GL_SUBTRACT, etc. */
+   } Blend[MAX_DRAW_BUFFERS];
+   /** Are the blend func terms currently different for each buffer/target? */
+   GLboolean _BlendFuncPerBuffer;
+   /** Are the blend equations currently different for each buffer/target? */
+   GLboolean _BlendEquationPerBuffer;
    /*@}*/
 
    /** 
@@ -1539,6 +1553,7 @@ struct gl_client_array
    GLboolean Enabled;          /**< Enabled flag is a boolean */
    GLboolean Normalized;        /**< GL_ARB_vertex_program */
    GLboolean Integer;           /**< Integer-valued? */
+   GLuint InstanceDivisor;      /**< GL_ARB_instanced_arrays */
    GLuint _ElementSize;         /**< size of each element in bytes */
 
    struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */
@@ -1741,11 +1756,24 @@ typedef enum
    PROGRAM_WRITE_ONLY,  /**< A dummy, write-only register */
    PROGRAM_ADDRESS,     /**< machine->AddressReg */
    PROGRAM_SAMPLER,     /**< for shader samplers, compile-time only */
+   PROGRAM_SYSTEM_VALUE,/**< InstanceId, PrimitiveID, etc. */
    PROGRAM_UNDEFINED,   /**< Invalid/TBD value */
    PROGRAM_FILE_MAX
 } gl_register_file;
 
 
+/**
+ * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be
+ * one of these values.
+ */
+typedef enum
+{
+   SYSTEM_VALUE_FRONT_FACE,  /**< Fragment shader only (not done yet) */
+   SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */
+   SYSTEM_VALUE_MAX          /**< Number of values */
+} gl_system_value;
+
+
 /** Vertex and fragment instructions */
 struct prog_instruction;
 struct gl_program_parameter_list;
@@ -1768,6 +1796,7 @@ struct gl_program
 
    GLbitfield InputsRead;     /**< Bitmask of which input regs are read */
    GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */
+   GLbitfield SystemValuesRead;   /**< Bitmask of SYSTEM_VALUE_x inputs used */
    GLbitfield InputFlags[MAX_PROGRAM_INPUTS];   /**< PROG_PARAM_BIT_x flags */
    GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */
    GLbitfield TexturesUsed[MAX_TEXTURE_UNITS];  /**< TEXTURE_x_BIT bitmask */
@@ -2191,6 +2220,7 @@ struct gl_shader_compiler_options
    GLboolean EmitNoCont;                  /**< Emit CONT opcode? */
    GLboolean EmitNoMainReturn;            /**< Emit CONT/RET opcodes? */
    GLboolean EmitNoNoise;                 /**< Emit NOISE opcodes? */
+   GLboolean EmitNoPow;                   /**< Emit POW opcodes? */
 
    /**
     * \name Forms of indirect addressing the driver cannot do.
@@ -2560,6 +2590,7 @@ struct gl_program_constants
  */
 struct gl_constants
 {
+   GLint MaxTextureMbytes;      /**< Max memory per image, in MB */
    GLint MaxTextureLevels;      /**< Max mipmap levels. */ 
    GLint Max3DTextureLevels;    /**< Max mipmap levels for 3D textures */
    GLint MaxCubeTextureLevels;  /**< Max mipmap levels for cube textures */
@@ -2646,12 +2677,16 @@ struct gl_constants
 struct gl_extensions
 {
    GLboolean dummy;  /* don't remove this! */
+   GLboolean dummy_true;  /* Set true by _mesa_init_extensions(). */
+   GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */
+   GLboolean ARB_ES2_compatibility;
    GLboolean ARB_blend_func_extended;
    GLboolean ARB_copy_buffer;
    GLboolean ARB_depth_buffer_float;
    GLboolean ARB_depth_clamp;
    GLboolean ARB_depth_texture;
    GLboolean ARB_draw_buffers;
+   GLboolean ARB_draw_buffers_blend;
    GLboolean ARB_draw_elements_base_vertex;
    GLboolean ARB_draw_instanced;
    GLboolean ARB_fragment_coord_conventions;
@@ -2761,6 +2796,7 @@ struct gl_extensions
    GLboolean EXT_vertex_array;
    GLboolean EXT_vertex_array_bgra;
    GLboolean EXT_vertex_array_set;
+   GLboolean OES_standard_derivatives;
    /* vendor extensions */
    GLboolean APPLE_client_storage;
    GLboolean APPLE_packed_pixels;
@@ -2800,6 +2836,7 @@ struct gl_extensions
    GLboolean OES_EGL_image;
    GLboolean OES_draw_texture;
    GLboolean EXT_texture_format_BGRA8888;
+   GLboolean extension_sentinel;
    /** The extension string */
    const GLubyte *String;
    /** Number of supported extensions */
@@ -3232,6 +3269,8 @@ struct gl_context
    /** software compression/decompression supported or not */
    GLboolean Mesa_DXTn;
 
+   GLboolean TextureFormatSupported[MESA_FORMAT_COUNT];
+
    /** 
     * Use dp4 (rather than mul/mad) instructions for position
     * transformation?