#ifndef U_BLITTER_H
#define U_BLITTER_H
-#include "util/u_memory.h"
+#include "util/u_framebuffer.h"
+#include "util/u_inlines.h"
#include "pipe/p_state.h"
+/* u_memory.h conflicts with st/mesa */
+#ifndef Elements
+#define Elements(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
#ifdef __cplusplus
extern "C" {
struct pipe_context;
+enum blitter_attrib_type {
+ UTIL_BLITTER_ATTRIB_NONE,
+ UTIL_BLITTER_ATTRIB_COLOR,
+ UTIL_BLITTER_ATTRIB_TEXCOORD
+};
+
struct blitter_context
{
+ /**
+ * Draw a rectangle.
+ *
+ * \param x1 An X coordinate of the top-left corner.
+ * \param y1 A Y coordinate of the top-left corner.
+ * \param x2 An X coordinate of the bottom-right corner.
+ * \param y2 A Y coordinate of the bottom-right corner.
+ * \param depth A depth which the rectangle is rendered at.
+ *
+ * \param type Semantics of the attributes "attrib".
+ * If type is UTIL_BLITTER_ATTRIB_NONE, ignore them.
+ * If type is UTIL_BLITTER_ATTRIB_COLOR, the attributes
+ * make up a constant RGBA color, and should go
+ * to the GENERIC0 varying slot of a fragment shader.
+ * If type is UTIL_BLITTER_ATTRIB_TEXCOORD, {a1, a2} and
+ * {a3, a4} specify top-left and bottom-right texture
+ * coordinates of the rectangle, respectively, and should go
+ * to the GENERIC0 varying slot of a fragment shader.
+ *
+ * \param attrib See type.
+ *
+ * \note A driver may optionally override this callback to implement
+ * a specialized hardware path for drawing a rectangle, e.g. using
+ * a rectangular point sprite.
+ */
+ void (*draw_rectangle)(struct blitter_context *blitter,
+ int x1, int y1, int x2, int y2,
+ float depth,
+ enum blitter_attrib_type type,
+ const union pipe_color_union *color);
+
+ /**
+ * Get the next surface layer for the pipe surface, i.e. make a copy
+ * of the surface and increment the first and last layer by 1.
+ *
+ * This callback is exposed, so that drivers can override it if needed.
+ */
+ struct pipe_surface *(*get_next_surface_layer)(struct pipe_context *pipe,
+ struct pipe_surface *surf);
+
+ /* Whether the blitter is running. */
+ boolean running;
+
/* Private members, really. */
+ struct pipe_context *pipe; /**< pipe context */
+
void *saved_blend_state; /**< blend state */
void *saved_dsa_state; /**< depth stencil alpha state */
void *saved_velem_state; /**< vertex elements state */
void *saved_rs_state; /**< rasterizer state */
- void *saved_fs, *saved_vs; /**< fragment shader, vertex shader */
+ void *saved_fs, *saved_vs, *saved_gs; /**< shaders */
struct pipe_framebuffer_state saved_fb_state; /**< framebuffer state */
struct pipe_stencil_ref saved_stencil_ref; /**< stencil ref */
struct pipe_viewport_state saved_viewport;
- struct pipe_clip_state saved_clip;
+ struct pipe_scissor_state saved_scissor;
+ boolean is_sample_mask_saved;
+ unsigned saved_sample_mask;
- int saved_num_sampler_states;
+ unsigned saved_num_sampler_states;
void *saved_sampler_states[PIPE_MAX_SAMPLERS];
- int saved_num_sampler_views;
+ unsigned saved_num_sampler_views;
struct pipe_sampler_view *saved_sampler_views[PIPE_MAX_SAMPLERS];
+
+ unsigned vb_slot;
+ struct pipe_vertex_buffer saved_vertex_buffer;
+
+ unsigned saved_num_so_targets;
+ struct pipe_stream_output_target *saved_so_targets[PIPE_MAX_SO_BUFFERS];
+
+ struct pipe_query *saved_render_cond_query;
+ uint saved_render_cond_mode;
+ boolean saved_render_cond_cond;
};
/**
*/
void util_blitter_destroy(struct blitter_context *blitter);
+void util_blitter_cache_all_shaders(struct blitter_context *blitter);
+
+/**
+ * Return the pipe context associated with a blitter context.
+ */
+static INLINE
+struct pipe_context *util_blitter_get_pipe(struct blitter_context *blitter)
+{
+ return blitter->pipe;
+}
+
+/**
+ * Override PIPE_CAP_TEXTURE_MULTISAMPLE as reported by the driver.
+ */
+void util_blitter_set_texture_multisample(struct blitter_context *blitter,
+ boolean supported);
+
+/* The default function to draw a rectangle. This can only be used
+ * inside of the draw_rectangle callback if the driver overrides it. */
+void util_blitter_draw_rectangle(struct blitter_context *blitter,
+ int x1, int y1, int x2, int y2, float depth,
+ enum blitter_attrib_type type,
+ const union pipe_color_union *attrib);
+
+
/*
- * These CSOs must be saved before any of the following functions is called:
- * - blend state
- * - depth stencil alpha state
- * - rasterizer state
+ * These states must be saved before any of the following functions are called:
+ * - vertex buffers
+ * - vertex elements
* - vertex shader
- * - fragment shader
+ * - geometry shader (if supported)
+ * - stream output targets (if supported)
+ * - rasterizer state
*/
/**
* Clear a specified set of currently bound buffers to specified values.
+ *
+ * These states must be saved in the blitter in addition to the state objects
+ * already required to be saved:
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
*/
void util_blitter_clear(struct blitter_context *blitter,
unsigned width, unsigned height,
- unsigned num_cbufs,
unsigned clear_buffers,
- const float *rgba,
+ const union pipe_color_union *color,
double depth, unsigned stencil);
+/**
+ * Check if the blitter (with the help of the driver) can blit between
+ * the two resources.
+ * The mask is a combination of the PIPE_MASK_* flags.
+ * Set to PIPE_MASK_RGBAZS if unsure.
+ */
+boolean util_blitter_is_copy_supported(struct blitter_context *blitter,
+ const struct pipe_resource *dst,
+ const struct pipe_resource *src,
+ unsigned mask);
+
+boolean util_blitter_is_blit_supported(struct blitter_context *blitter,
+ const struct pipe_blit_info *info);
+
/**
* Copy a block of pixels from one surface to another.
*
- * You can copy from any color format to any other color format provided
- * the former can be sampled and the latter can be rendered to. Otherwise,
- * a software fallback path is taken and both surfaces must be of the same
- * format.
- *
- * The same holds for depth-stencil formats with the exception that stencil
- * cannot be copied unless you set ignore_stencil to FALSE. In that case,
- * a software fallback path is taken and both surfaces must be of the same
- * format.
- *
- * Use pipe_screen->is_format_supported to know your options.
- *
* These states must be saved in the blitter in addition to the state objects
* already required to be saved:
- * - framebuffer state
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
* - fragment sampler states
* - fragment sampler textures
+ * - framebuffer state
+ * - sample mask
+ */
+void util_blitter_copy_texture(struct blitter_context *blitter,
+ struct pipe_resource *dst,
+ unsigned dst_level,
+ unsigned dstx, unsigned dsty, unsigned dstz,
+ struct pipe_resource *src,
+ unsigned src_level,
+ const struct pipe_box *srcbox, unsigned mask,
+ boolean copy_all_samples);
+
+/**
+ * This is a generic implementation of pipe->blit, which accepts
+ * sampler/surface views instead of resources.
+ *
+ * The layer and mipmap level are specified by the views.
+ *
+ * Drivers can use this to change resource properties (like format, width,
+ * height) by changing how the views interpret them, instead of changing
+ * pipe_resource directly. This is used to blit resources of formats which
+ * are not renderable.
+ *
+ * src_width0 and src_height0 are sampler_view-private properties that
+ * override pipe_resource. The blitter uses them for computation of texture
+ * coordinates. The dst dimensions are supplied through pipe_surface::width
+ * and height.
+ *
+ * The mask is a combination of the PIPE_MASK_* flags.
+ * Set to PIPE_MASK_RGBAZS if unsure.
*/
-void util_blitter_copy(struct blitter_context *blitter,
- struct pipe_surface *dst,
- unsigned dstx, unsigned dsty,
- struct pipe_surface *src,
- unsigned srcx, unsigned srcy,
- unsigned width, unsigned height,
- boolean ignore_stencil);
+void util_blitter_blit_generic(struct blitter_context *blitter,
+ struct pipe_surface *dst,
+ const struct pipe_box *dstbox,
+ struct pipe_sampler_view *src,
+ const struct pipe_box *srcbox,
+ unsigned src_width0, unsigned src_height0,
+ unsigned mask, unsigned filter,
+ const struct pipe_scissor_state *scissor,
+ boolean copy_all_samples);
+
+void util_blitter_blit(struct blitter_context *blitter,
+ const struct pipe_blit_info *info);
/**
- * Fill a region of a surface with a constant value.
+ * Helper function to initialize a view for copy_texture_view.
+ * The parameters must match copy_texture_view.
+ */
+void util_blitter_default_dst_texture(struct pipe_surface *dst_templ,
+ struct pipe_resource *dst,
+ unsigned dstlevel,
+ unsigned dstz);
+
+/**
+ * Helper function to initialize a view for copy_texture_view.
+ * The parameters must match copy_texture_view.
+ */
+void util_blitter_default_src_texture(struct pipe_sampler_view *src_templ,
+ struct pipe_resource *src,
+ unsigned srclevel);
+
+/**
+ * Copy data from one buffer to another using the Stream Output functionality.
+ * 4-byte alignment is required, otherwise software fallback is used.
+ */
+void util_blitter_copy_buffer(struct blitter_context *blitter,
+ struct pipe_resource *dst,
+ unsigned dstx,
+ struct pipe_resource *src,
+ unsigned srcx,
+ unsigned size);
+
+/**
+ * Clear the contents of a buffer using the Stream Output functionality.
+ * 4-byte alignment is required.
+ *
+ * "num_channels" can be 1, 2, 3, or 4, and specifies if the clear value is
+ * R, RG, RGB, or RGBA.
*
- * If the surface cannot be rendered to or it's a depth-stencil format,
- * a software fallback path is taken.
+ * For each element, only "num_channels" components of "clear_value" are
+ * copied to the buffer, then the offset is incremented by num_channels*4.
+ */
+void util_blitter_clear_buffer(struct blitter_context *blitter,
+ struct pipe_resource *dst,
+ unsigned offset, unsigned size,
+ unsigned num_channels,
+ const union pipe_color_union *clear_value);
+
+/**
+ * Clear a region of a (color) surface to a constant value.
*
* These states must be saved in the blitter in addition to the state objects
* already required to be saved:
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
* - framebuffer state
*/
-void util_blitter_fill(struct blitter_context *blitter,
- struct pipe_surface *dst,
- unsigned dstx, unsigned dsty,
- unsigned width, unsigned height,
- unsigned value);
+void util_blitter_clear_render_target(struct blitter_context *blitter,
+ struct pipe_surface *dst,
+ const union pipe_color_union *color,
+ unsigned dstx, unsigned dsty,
+ unsigned width, unsigned height);
/**
- * Copy all pixels from one surface to another.
+ * Clear a region of a depth-stencil surface, both stencil and depth
+ * or only one of them if this is a combined depth-stencil surface.
*
- * The rules are the same as in util_blitter_copy with the addition that
- * surfaces must have the same size.
+ * These states must be saved in the blitter in addition to the state objects
+ * already required to be saved:
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
+ * - framebuffer state
+ */
+void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
+ struct pipe_surface *dst,
+ unsigned clear_flags,
+ double depth,
+ unsigned stencil,
+ unsigned dstx, unsigned dsty,
+ unsigned width, unsigned height);
+
+/* The following functions are customized variants of the clear functions.
+ * Some drivers use them internally to do things like MSAA resolve
+ * and resource decompression. It usually consists of rendering a full-screen
+ * quad with a special blend or DSA state.
*/
-static INLINE
-void util_blitter_copy_surface(struct blitter_context *blitter,
- struct pipe_surface *dst,
- struct pipe_surface *src,
- boolean ignore_stencil)
-{
- assert(dst->width == src->width && dst->height == src->height);
-
- util_blitter_copy(blitter, dst, 0, 0, src, 0, 0, src->width, src->height,
- ignore_stencil);
-}
+/* Used by r300g for depth decompression. */
+void util_blitter_custom_clear_depth(struct blitter_context *blitter,
+ unsigned width, unsigned height,
+ double depth, void *custom_dsa);
+
+/* Used by r600g for depth decompression. */
+void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
+ struct pipe_surface *zsurf,
+ struct pipe_surface *cbsurf,
+ unsigned sample_mask,
+ void *dsa_stage, float depth);
+
+/* Used by r600g for color decompression. */
+void util_blitter_custom_color(struct blitter_context *blitter,
+ struct pipe_surface *dstsurf,
+ void *custom_blend);
+
+/* Used by r600g for MSAA color resolve. */
+void util_blitter_custom_resolve_color(struct blitter_context *blitter,
+ struct pipe_resource *dst,
+ unsigned dst_level,
+ unsigned dst_layer,
+ struct pipe_resource *src,
+ unsigned src_layer,
+ unsigned sampled_mask,
+ void *custom_blend,
+ enum pipe_format format);
/* The functions below should be used to save currently bound constant state
* objects inside a driver. The objects are automatically restored at the end
- * of the util_blitter_{clear, fill, copy, copy_surface} functions and then
+ * of the util_blitter_{clear, copy_region, fill_region} functions and then
* forgotten.
*
- * CSOs not listed here are not affected by util_blitter. */
+ * States not listed here are not affected by util_blitter. */
static INLINE
void util_blitter_save_blend(struct blitter_context *blitter,
blitter->saved_vs = vs;
}
+static INLINE
+void util_blitter_save_geometry_shader(struct blitter_context *blitter,
+ void *gs)
+{
+ blitter->saved_gs = gs;
+}
+
static INLINE
void util_blitter_save_framebuffer(struct blitter_context *blitter,
- struct pipe_framebuffer_state *state)
+ const struct pipe_framebuffer_state *state)
{
- blitter->saved_fb_state = *state;
+ blitter->saved_fb_state.nr_cbufs = 0; /* It's ~0 now, meaning it's unsaved. */
+ util_copy_framebuffer_state(&blitter->saved_fb_state, state);
}
static INLINE
}
static INLINE
-void util_blitter_save_clip(struct blitter_context *blitter,
- struct pipe_clip_state *state)
+void util_blitter_save_scissor(struct blitter_context *blitter,
+ struct pipe_scissor_state *state)
{
- blitter->saved_clip = *state;
+ blitter->saved_scissor = *state;
}
static INLINE
void util_blitter_save_fragment_sampler_states(
struct blitter_context *blitter,
- int num_sampler_states,
+ unsigned num_sampler_states,
void **sampler_states)
{
assert(num_sampler_states <= Elements(blitter->saved_sampler_states));
static INLINE void
util_blitter_save_fragment_sampler_views(struct blitter_context *blitter,
- int num_views,
+ unsigned num_views,
struct pipe_sampler_view **views)
{
+ unsigned i;
assert(num_views <= Elements(blitter->saved_sampler_views));
blitter->saved_num_sampler_views = num_views;
- memcpy(blitter->saved_sampler_views,
- views,
- num_views * sizeof(struct pipe_sampler_view *));
+ for (i = 0; i < num_views; i++)
+ pipe_sampler_view_reference(&blitter->saved_sampler_views[i],
+ views[i]);
+}
+
+static INLINE void
+util_blitter_save_vertex_buffer_slot(struct blitter_context *blitter,
+ struct pipe_vertex_buffer *vertex_buffers)
+{
+ pipe_resource_reference(&blitter->saved_vertex_buffer.buffer,
+ vertex_buffers[blitter->vb_slot].buffer);
+ memcpy(&blitter->saved_vertex_buffer, &vertex_buffers[blitter->vb_slot],
+ sizeof(struct pipe_vertex_buffer));
+}
+
+static INLINE void
+util_blitter_save_so_targets(struct blitter_context *blitter,
+ unsigned num_targets,
+ struct pipe_stream_output_target **targets)
+{
+ unsigned i;
+ assert(num_targets <= Elements(blitter->saved_so_targets));
+
+ blitter->saved_num_so_targets = num_targets;
+ for (i = 0; i < num_targets; i++)
+ pipe_so_target_reference(&blitter->saved_so_targets[i],
+ targets[i]);
+}
+
+static INLINE void
+util_blitter_save_sample_mask(struct blitter_context *blitter,
+ unsigned sample_mask)
+{
+ blitter->is_sample_mask_saved = TRUE;
+ blitter->saved_sample_mask = sample_mask;
+}
+
+static INLINE void
+util_blitter_save_render_condition(struct blitter_context *blitter,
+ struct pipe_query *query,
+ boolean condition,
+ uint mode)
+{
+ blitter->saved_render_cond_query = query;
+ blitter->saved_render_cond_mode = mode;
+ blitter->saved_render_cond_cond = condition;
}
#ifdef __cplusplus
projects / mesa.git / blobdiff