Commit 5f5b83cb authored by Marek Olšák's avatar Marek Olšák

gallium: add PIPE_SHADER_CAP_MAX_OUTPUTS and use it in st/mesa

With 5 shader stages and various combinations of enabled and disabled shaders,
the maximum number of outputs in one shader doesn't have to be equal to
the maximum number of inputs in the following shader.

v2: return 32 for softpipe and llvmpipe
parent ef280c95
......@@ -97,6 +97,8 @@ gallivm_get_shader_param(enum pipe_shader_cap param)
return LP_MAX_TGSI_NESTING;
case PIPE_SHADER_CAP_MAX_INPUTS:
return PIPE_MAX_SHADER_INPUTS;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 32;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return sizeof(float[4]) * 4096;
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -426,6 +426,8 @@ tgsi_exec_get_shader_param(enum pipe_shader_cap param)
return TGSI_EXEC_MAX_NESTING;
case PIPE_SHADER_CAP_MAX_INPUTS:
return TGSI_EXEC_MAX_INPUT_ATTRIBS;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 32;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return TGSI_EXEC_MAX_CONST_BUFFER_SIZE;
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -267,6 +267,8 @@ support different features.
* ``PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS``: The maximum number of texture indirections.
* ``PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH``: The maximum nested control flow depth.
* ``PIPE_SHADER_CAP_MAX_INPUTS``: The maximum number of input registers.
* ``PIPE_SHADER_CAP_MAX_OUTPUTS``: The maximum number of output registers.
This is valid for all shaders except the fragment shader.
* ``PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE``: The maximum size per constant buffer in bytes.
* ``PIPE_SHADER_CAP_MAX_CONST_BUFFERS``: Maximum number of constant buffers that can be bound
to any shader stage using ``set_constant_buffer``. If 0 or 1, the pipe will
......
......@@ -351,6 +351,7 @@ fd_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
return 8; /* XXX */
case PIPE_SHADER_CAP_MAX_INPUTS:
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 16;
case PIPE_SHADER_CAP_MAX_TEMPS:
return 64; /* Max native temporaries. */
......
......@@ -130,6 +130,8 @@ i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_sha
return 0;
case PIPE_SHADER_CAP_MAX_INPUTS:
return 10;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 1;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return 32 * sizeof(float[4]);
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -121,6 +121,7 @@ ilo_get_shader_param(struct pipe_screen *screen, unsigned shader,
case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
return UINT_MAX;
case PIPE_SHADER_CAP_MAX_INPUTS:
case PIPE_SHADER_CAP_MAX_OUTPUTS:
/* this is limited by how many attributes SF can remap */
return 16;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
......
......@@ -222,6 +222,7 @@ nv30_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
return 0;
case PIPE_SHADER_CAP_MAX_INPUTS:
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 16;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return ((eng3d->oclass >= NV40_3D_CLASS) ? (468 - 6): (256 - 6)) * sizeof(float[4]);
......@@ -258,6 +259,8 @@ nv30_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
return 0;
case PIPE_SHADER_CAP_MAX_INPUTS:
return 8; /* should be possible to do 10 with nv4x */
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 4;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return ((eng3d->oclass >= NV40_3D_CLASS) ? 224 : 32) * sizeof(float[4]);
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -253,6 +253,8 @@ nv50_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
if (shader == PIPE_SHADER_VERTEX)
return 32;
return 15;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 16;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return 65536;
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -259,6 +259,8 @@ nvc0_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
* and excludes 0x60 per-patch inputs.
*/
return 0x200 / 16;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 32;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return 65536;
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -258,6 +258,8 @@ static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, e
* additional texcoords but there is no two-sided color
* selection then. However the facing bit can be used instead. */
return 10;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 4;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return (is_r500 ? 256 : 32) * sizeof(float[4]);
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......@@ -306,6 +308,8 @@ static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, e
return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
case PIPE_SHADER_CAP_MAX_INPUTS:
return 16;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 10;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return 256 * sizeof(float[4]);
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -434,6 +434,8 @@ static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, e
return 32;
case PIPE_SHADER_CAP_MAX_INPUTS:
return shader == PIPE_SHADER_VERTEX ? 16 : 32;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return shader == PIPE_SHADER_FRAGMENT ? 8 : 32;
case PIPE_SHADER_CAP_MAX_TEMPS:
return 256; /* Max native temporaries. */
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
......
......@@ -364,6 +364,8 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
return 32;
case PIPE_SHADER_CAP_MAX_INPUTS:
return shader == PIPE_SHADER_VERTEX ? SI_NUM_VERTEX_BUFFERS : 32;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return shader == PIPE_SHADER_FRAGMENT ? 8 : 32;
case PIPE_SHADER_CAP_MAX_TEMPS:
return 256; /* Max native temporaries. */
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
......
......@@ -330,6 +330,8 @@ static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, en
return SVGA3D_MAX_NESTING_LEVEL;
case PIPE_SHADER_CAP_MAX_INPUTS:
return 10;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return svgascreen->max_color_buffers;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return 224 * sizeof(float[4]);
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......@@ -387,6 +389,8 @@ static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, en
return SVGA3D_MAX_NESTING_LEVEL;
case PIPE_SHADER_CAP_MAX_INPUTS:
return 16;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return 10;
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
return 256 * sizeof(float[4]);
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
......
......@@ -283,6 +283,8 @@ vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
return 8;
else
return 16;
case PIPE_SHADER_CAP_MAX_OUTPUTS:
return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
case PIPE_SHADER_CAP_MAX_TEMPS:
return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
......
......@@ -613,6 +613,7 @@ enum pipe_shader_cap
PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS,
PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH,
PIPE_SHADER_CAP_MAX_INPUTS,
PIPE_SHADER_CAP_MAX_OUTPUTS,
PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE,
PIPE_SHADER_CAP_MAX_CONST_BUFFERS,
PIPE_SHADER_CAP_MAX_TEMPS,
......
......@@ -192,6 +192,10 @@ void st_init_limits(struct pipe_screen *screen,
pc->MaxParameters = pc->MaxNativeParameters =
screen->get_shader_param(screen, sh,
PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / sizeof(float[4]);
pc->MaxInputComponents =
screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
pc->MaxOutputComponents =
screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
......@@ -261,10 +265,6 @@ void st_init_limits(struct pipe_screen *screen,
c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
PIPE_SHADER_CAP_MAX_INPUTS);
c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
c->Program[MESA_SHADER_FRAGMENT].MaxInputComponents = c->MaxVarying * 4;
c->Program[MESA_SHADER_VERTEX].MaxOutputComponents = c->MaxVarying * 4;
c->Program[MESA_SHADER_GEOMETRY].MaxInputComponents = c->MaxVarying * 4;
c->Program[MESA_SHADER_GEOMETRY].MaxOutputComponents = c->MaxVarying * 4;
c->MaxGeometryOutputVertices = screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
c->MaxGeometryTotalOutputComponents = screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
......
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