#include "main/mtypes.h"
#include "program/prog_execute.h"
#include "swrast.h"
+#include "s_fragprog.h"
#include "s_span.h"
struct swrast_texture_image;
-typedef void (*FetchTexelFuncC)(const struct swrast_texture_image *texImage,
- GLint col, GLint row, GLint img,
- GLchan *texelOut);
-
/**
- * As above, but returns floats.
- * Used for depth component images and for upcoming signed/float
- * texture images.
+ * Fetch a texel from texture image at given position.
*/
-typedef void (*FetchTexelFuncF)(const struct swrast_texture_image *texImage,
- GLint col, GLint row, GLint img,
- GLfloat *texelOut);
-
-
-typedef void (*StoreTexelFunc)(struct swrast_texture_image *texImage,
+typedef void (*FetchTexelFunc)(const struct swrast_texture_image *texImage,
GLint col, GLint row, GLint img,
- const void *texel);
+ GLfloat *texelOut);
+
/**
* Subclass of gl_texture_image.
* We need extra fields/info to keep tracking of mapped texture buffers,
- * strides and Fetch/Store functions.
+ * strides and Fetch functions.
*/
struct swrast_texture_image
{
struct gl_texture_image Base;
-#if 0
- /** used for mipmap LOD computation */
- GLfloat WidthScale, HeightScale, DepthScale;
GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */
- GLubyte *Data; /**< The actual texture data in malloc'd memory */
+ /** used for mipmap LOD computation */
+ GLfloat WidthScale, HeightScale, DepthScale;
- GLint TexelSize; /**< bytes per texel block */
-#endif
+ /** These fields only valid when texture memory is mapped */
+ GLint RowStride; /**< Padded width in units of texels */
+ GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to
+ each 2D slice in 'Data', in texels */
+ GLubyte *Map; /**< Pointer to mapped image memory */
- FetchTexelFuncC FetchTexelc;
- FetchTexelFuncF FetchTexelf;
- StoreTexelFunc Store;
+ /** Malloc'd texture memory */
+ GLubyte *Buffer;
-#if 0
- /** These fields only valid when texture memory is mapped */
- GLubyte **SliceMaps; /**< points to OneMap or a malloc'd array */
- GLint RowStride; /**< bytes per row of blocks */
-#endif
+ FetchTexelFunc FetchTexel;
};
/** cast wrapper */
-static INLINE struct swrast_texture_image *
+static inline struct swrast_texture_image *
swrast_texture_image(struct gl_texture_image *img)
{
return (struct swrast_texture_image *) img;
}
/** cast wrapper */
-static INLINE const struct swrast_texture_image *
+static inline const struct swrast_texture_image *
swrast_texture_image_const(const struct gl_texture_image *img)
{
return (const struct swrast_texture_image *) img;
}
+/**
+ * Subclass of gl_renderbuffer with extra fields needed for software
+ * rendering.
+ */
+struct swrast_renderbuffer
+{
+ struct gl_renderbuffer Base;
+
+ GLubyte *Buffer; /**< The malloc'd memory for buffer */
+
+ /** These fields are only valid while buffer is mapped for rendering */
+ GLubyte *Map;
+ GLint RowStride; /**< in bytes */
+
+ /** For span rendering */
+ GLenum ColorType;
+};
+
+
+/** cast wrapper */
+static inline struct swrast_renderbuffer *
+swrast_renderbuffer(struct gl_renderbuffer *img)
+{
+ return (struct swrast_renderbuffer *) img;
+}
+
+
+
/**
* \struct SWcontext
* \brief Per-context state that's private to the software rasterizer module.
/** List/array of the fragment attributes to interpolate */
GLuint _ActiveAttribs[FRAG_ATTRIB_MAX];
- /** Same info, but as a bitmask */
- GLbitfield _ActiveAttribMask;
+ /** Same info, but as a bitmask of FRAG_BIT_x bits */
+ GLbitfield64 _ActiveAttribMask;
/** Number of fragment attributes to interpolate */
GLuint _NumActiveAttribs;
/** Indicates how each attrib is to be interpolated (lines/tris) */
GLenum _InterpMode[FRAG_ATTRIB_MAX]; /* GL_FLAT or GL_SMOOTH (for now) */
- /* Accum buffer temporaries.
- */
- GLboolean _IntegerAccumMode; /**< Storing unscaled integers? */
- GLfloat _IntegerAccumScaler; /**< Implicit scale factor */
-
/* Working values:
*/
GLuint StippleCounter; /**< Line stipple counter */
/** State used during execution of fragment programs */
struct gl_program_machine FragProgMachine;
+ /** Temporary arrays for stencil operations. To avoid large stack
+ * allocations.
+ */
+ struct {
+ GLubyte *buf1, *buf2, *buf3, *buf4;
+ } stencil_temp;
+
} SWcontext;
/** Return SWcontext for the given struct gl_context */
-static INLINE SWcontext *
+static inline SWcontext *
SWRAST_CONTEXT(struct gl_context *ctx)
{
return (SWcontext *) ctx->swrast_context;
}
/** const version of above */
-static INLINE const SWcontext *
+static inline const SWcontext *
CONST_SWRAST_CONTEXT(const struct gl_context *ctx)
{
return (const SWcontext *) ctx->swrast_context;
* For drivers that rely on swrast for fallback rendering, this is the
* driver's opportunity to map renderbuffers and textures.
*/
-static INLINE void
+static inline void
swrast_render_start(struct gl_context *ctx)
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
/** Called after framebuffer reading/writing */
-static INLINE void
+static inline void
swrast_render_finish(struct gl_context *ctx)
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
}
+extern void
+_swrast_span_render_start(struct gl_context *ctx);
+
+extern void
+_swrast_span_render_finish(struct gl_context *ctx);
+
+extern void
+_swrast_map_textures(struct gl_context *ctx);
+
+extern void
+_swrast_unmap_textures(struct gl_context *ctx);
+
+extern void
+_swrast_map_texture(struct gl_context *ctx, struct gl_texture_object *texObj);
+
+extern void
+_swrast_unmap_texture(struct gl_context *ctx, struct gl_texture_object *texObj);
+
+
+extern void
+_swrast_map_renderbuffers(struct gl_context *ctx);
+
+extern void
+_swrast_unmap_renderbuffers(struct gl_context *ctx);
+
/**
* Size of an RGBA pixel, in bytes, for given datatype.
#define ATTRIB_LOOP_END } }
+/**
+ * Return the address of a pixel value in a mapped renderbuffer.
+ */
+static inline GLubyte *
+_swrast_pixel_address(struct gl_renderbuffer *rb, GLint x, GLint y)
+{
+ struct swrast_renderbuffer *srb = swrast_renderbuffer(rb);
+ const GLint bpp = _mesa_get_format_bytes(rb->Format);
+ const GLint rowStride = srb->RowStride;
+ assert(x >= 0);
+ assert(y >= 0);
+ /* NOTE: using <= only because of s_tritemp.h which gets a pixel
+ * address but doesn't necessarily access it.
+ */
+ assert(x <= (GLint) rb->Width);
+ assert(y <= (GLint) rb->Height);
+ assert(srb->Map);
+ return (GLubyte *) srb->Map + y * rowStride + x * bpp;
+}
+
+
#endif
projects / mesa.git / blobdiff