Commit 44254b92 authored by Brian's avatar Brian

Added pipe->get_paramf() to query float limits.

So far max point size, line width, texture anistopy and lod bias.
parent 95128c1d
......@@ -120,6 +120,7 @@ struct pipe_context *failover_create( struct pipe_context *hw,
failover->pipe.get_name = hw->get_name;
failover->pipe.get_vendor = hw->get_vendor;
failover->pipe.get_param = hw->get_param;
failover->pipe.get_paramf = hw->get_paramf;
failover->pipe.draw_arrays = failover_draw_arrays;
failover->pipe.draw_elements = failover_draw_elements;
......
......@@ -144,6 +144,32 @@ i915_get_param(struct pipe_context *pipe, int param)
}
static float
i915_get_paramf(struct pipe_context *pipe, int param)
{
switch (param) {
case PIPE_CAP_MAX_LINE_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_LINE_WIDTH_AA:
return 7.5;
case PIPE_CAP_MAX_POINT_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_POINT_WIDTH_AA:
return 255.0;
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 0.0;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 16.0;
default:
return 0;
}
}
static void i915_destroy( struct pipe_context *pipe )
{
struct i915_context *i915 = i915_context( pipe );
......@@ -301,6 +327,7 @@ struct pipe_context *i915_create( struct pipe_winsys *pipe_winsys,
i915->pipe.destroy = i915_destroy;
i915->pipe.is_format_supported = i915_is_format_supported;
i915->pipe.get_param = i915_get_param;
i915->pipe.get_paramf = i915_get_paramf;
i915->pipe.clear = i915_clear;
......
......@@ -58,6 +58,7 @@ struct pipe_context {
const char *(*get_vendor)( struct pipe_context *pipe );
int (*get_param)( struct pipe_context *pipe, int param );
float (*get_paramf)( struct pipe_context *pipe, int param );
/*
......
......@@ -250,5 +250,12 @@
#define PIPE_CAP_MAX_TEXTURE_2D_LEVELS 11
#define PIPE_CAP_MAX_TEXTURE_3D_LEVELS 12
#define PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS 13
#define PIPE_CAP_MAX_LINE_WIDTH 14
#define PIPE_CAP_MAX_LINE_WIDTH_AA 15
#define PIPE_CAP_MAX_POINT_WIDTH 16
#define PIPE_CAP_MAX_POINT_WIDTH_AA 17
#define PIPE_CAP_MAX_TEXTURE_ANISOTROPY 18
#define PIPE_CAP_MAX_TEXTURE_LOD_BIAS 19
#endif
......@@ -251,6 +251,30 @@ static int softpipe_get_param(struct pipe_context *pipe, int param)
}
}
static float softpipe_get_paramf(struct pipe_context *pipe, int param)
{
switch (param) {
case PIPE_CAP_MAX_LINE_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_LINE_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAP_MAX_POINT_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_POINT_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 0.0;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 16.0; /* arbitrary */
default:
return 0;
}
}
struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys,
struct softpipe_winsys *softpipe_winsys )
{
......@@ -270,8 +294,8 @@ struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys,
/* queries */
softpipe->pipe.is_format_supported = softpipe_is_format_supported;
//softpipe->pipe.max_texture_size = softpipe_max_texture_size;
softpipe->pipe.get_param = softpipe_get_param;
softpipe->pipe.get_paramf = softpipe_get_paramf;
/* state setters */
softpipe->pipe.create_alpha_test_state = softpipe_create_alpha_test_state;
......
......@@ -42,6 +42,11 @@ static int min(int a, int b)
return (a < b) ? a : b;
}
static int max(int a, int b)
{
return (a > b) ? a : b;
}
static int clamp(int a, int min, int max)
{
if (a < min)
......@@ -85,6 +90,22 @@ void st_init_limits(struct st_context *st)
c->MaxDrawBuffers
= clamp(pipe->get_param(pipe, PIPE_CAP_MAX_RENDER_TARGETS),
1, MAX_DRAW_BUFFERS);
c->MaxLineWidth
= max(1.0, pipe->get_paramf(pipe, PIPE_CAP_MAX_LINE_WIDTH));
c->MaxLineWidthAA
= max(1.0, pipe->get_paramf(pipe, PIPE_CAP_MAX_LINE_WIDTH_AA));
c->MaxPointSize
= max(1.0, pipe->get_paramf(pipe, PIPE_CAP_MAX_POINT_WIDTH));
c->MaxPointSizeAA
= max(1.0, pipe->get_paramf(pipe, PIPE_CAP_MAX_POINT_WIDTH_AA));
c->MaxTextureMaxAnisotropy
= max(2.0, pipe->get_paramf(pipe, PIPE_CAP_MAX_TEXTURE_ANISOTROPY));
c->MaxTextureLodBias
= pipe->get_paramf(pipe, PIPE_CAP_MAX_TEXTURE_LOD_BIAS);
}
......
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